1.
Gland from which aldosterone comes?
Correct Answer
B. Adrenal cortex
Explanation
The adrenal cortex is the gland from which aldosterone comes. Aldosterone is a hormone produced by the adrenal cortex that plays a crucial role in regulating blood pressure and electrolyte balance in the body. It acts on the kidneys to increase the reabsorption of sodium and the excretion of potassium, which helps to maintain the balance of these ions in the blood. The adrenal medulla, kidney, heart, and endocrine pancreas do not produce aldosterone.
2.
Gland from which atrial natriuretic factor comes?
Correct Answer
A. Heart
Explanation
The correct answer is heart because atrial natriuretic factor is a hormone that is primarily produced and released by the cells of the heart, specifically the atria. This hormone helps to regulate blood pressure and fluid balance in the body by promoting the excretion of sodium and water by the kidneys. Therefore, it is derived from the heart.
3.
Gland from which cortisol comes?
Correct Answer
C. Adrenal cortex
Explanation
The adrenal cortex is the gland from which cortisol comes. Cortisol is a hormone produced by the adrenal glands, specifically the outer layer called the adrenal cortex. It plays a crucial role in regulating various bodily functions, including metabolism, immune response, and stress response. The adrenal cortex is responsible for producing several hormones, including cortisol, aldosterone, and sex hormones.
4.
Gland from which epinephrin comes?
Correct Answer
C. Adrenal medulla
Explanation
The correct answer is adrenal medulla. The adrenal medulla is a part of the adrenal gland that produces and releases epinephrine, also known as adrenaline. Epinephrine is a hormone that plays a crucial role in the body's response to stress, increasing heart rate, blood pressure, and energy levels. The kidney, endocrine pancreas, adrenal cortex, and posterior pituitary do not produce epinephrine.
5.
Gland from which erythropoetin comes?
Correct Answer
E. Kidney
Explanation
Erythropoietin is a hormone that stimulates the production of red blood cells. It is primarily produced in the kidneys, specifically in the cells of the renal cortex. When the oxygen levels in the blood are low, the kidneys release erythropoietin, which then travels to the bone marrow and stimulates the production of new red blood cells. Therefore, the correct answer is kidney.
6.
Gland from which estrogen comes?
Correct Answer
A. Ovaries/placenta
Explanation
Estrogen is a hormone primarily produced by the ovaries in females. It plays a crucial role in the development and regulation of the female reproductive system. However, during pregnancy, the placenta also produces estrogen to support the growth and development of the fetus. Therefore, both the ovaries and the placenta are sources of estrogen in the female body.
7.
Gland from which glucagon comes?
Correct Answer
A. Endocrine pancreas, alpHa cells
Explanation
Glucagon is a hormone that is produced in the endocrine pancreas, specifically by the alpha cells. These alpha cells are responsible for secreting glucagon, which functions to increase blood glucose levels by stimulating the liver to release stored glucose into the bloodstream.
8.
Gland from which insulin comes?
Correct Answer
B. Endocrine pancreas, beta cells
Explanation
Insulin is a hormone that is produced by the beta cells in the endocrine pancreas. These beta cells are responsible for producing and releasing insulin into the bloodstream. Insulin plays a crucial role in regulating blood sugar levels by allowing cells to take in glucose from the bloodstream. Therefore, the correct answer is "endocrine pancreas, beta cells."
9.
Gland from which progesterone comes?
Correct Answer
A. Ovaries/placenta
Explanation
Progesterone is a hormone primarily produced by the ovaries in women. It plays a crucial role in the menstrual cycle and pregnancy. However, during pregnancy, the placenta also starts producing progesterone to support the growth and development of the fetus. Therefore, both the ovaries and the placenta are sources of progesterone in the female body.
10.
Gland from which testosterone comes?
Correct Answer
A. Testes
Explanation
The testes are the glands from which testosterone comes. Testosterone is a hormone primarily produced in the testes and is responsible for the development and maintenance of male reproductive tissues and secondary sexual characteristics. It plays a crucial role in the regulation of sexual function, muscle mass, bone density, and overall well-being in males.
11.
Gland from which adrenocorticotropic hormone comes?
Correct Answer
C. Anterior pituitary
Explanation
The adrenocorticotropic hormone (ACTH) is produced and released by the anterior pituitary gland. This hormone stimulates the production and release of cortisol by the adrenal glands. The hypothalamus produces corticotropin-releasing hormone (CRH), which then stimulates the release of ACTH from the anterior pituitary gland. Therefore, the correct answer is the anterior pituitary gland.
12.
Gland from which calcitonin comes?
Correct Answer
B. Thyroid
Explanation
thyroid C cells, actually
13.
Gland from which follicle stimulating hormone (FSH) comes?
Correct Answer
C. Anterior pituitary
Explanation
The anterior pituitary gland is the gland from which follicle stimulating hormone (FSH) comes. FSH is responsible for the development and maturation of ovarian follicles in females and sperm production in males. The hypothalamus plays a role in regulating the release of FSH by producing gonadotropin-releasing hormone (GnRH), which stimulates the anterior pituitary gland to release FSH. The posterior pituitary, kidney, and thymus are not involved in the production or release of FSH.
14.
Gland from which growth hormones come?
Correct Answer
C. Anterior pituitary
Explanation
The anterior pituitary gland is responsible for producing and releasing growth hormones. These hormones play a crucial role in stimulating growth and development in various parts of the body. The hypothalamus regulates the release of these hormones by secreting releasing hormones that act on the anterior pituitary. The thyroid gland produces thyroid hormones that control metabolism, while the adrenal cortex produces hormones such as cortisol and aldosterone. The posterior pituitary gland releases hormones such as oxytocin and antidiuretic hormone.
15.
Gland from which luteinizing hormone (LH) comes?
Correct Answer
B. Anterior pituitary
Explanation
gonadotropic
16.
Gland from which oxytocin comes?
Correct Answer
C. Posterior pituitary
Explanation
Oxytocin is a hormone that is produced by the posterior pituitary gland. The posterior pituitary gland is responsible for storing and releasing oxytocin into the bloodstream. Oxytocin plays a role in various physiological processes, including the stimulation of uterine contractions during childbirth and the release of milk during breastfeeding. Therefore, the correct answer is posterior pituitary.
17.
Gland from which parathyroid hormone (PTH) comes?
Correct Answer
A. Parathyroids
Explanation
The parathyroids are the glands from which parathyroid hormone (PTH) is produced. PTH is responsible for regulating calcium levels in the body. These small glands are located near the thyroid gland in the neck.
18.
Gland from which prolactin comes?
Correct Answer
A. Anterior pituitary
Explanation
Prolactin is a hormone that is responsible for milk production in mammals. It is secreted by the anterior pituitary gland, which is located at the base of the brain. The anterior pituitary gland produces and releases various hormones that regulate different bodily functions. In this case, it secretes prolactin to stimulate milk production in the mammary glands. The adrenal cortex, thyroid, posterior pituitary, and hypothalamus do not produce prolactin.
19.
Gland from which releasing and inhibiting factors come?
Correct Answer
C. Hypothalamus
Explanation
The hypothalamus is the gland from which releasing and inhibiting factors come. Releasing factors are hormones that stimulate the release of other hormones from the anterior pituitary gland, while inhibiting factors suppress the release of hormones from the anterior pituitary gland. The hypothalamus plays a crucial role in regulating the endocrine system by controlling the secretion of hormones from the pituitary gland.
20.
Gland from which somatostatin (SS) comes?
Correct Answer
C. Endocrine pancreas
Explanation
delta cells
21.
Gland from which thymosin comes?
Correct Answer
B. Thymus
Explanation
Thymosin is a hormone that is produced by the thymus gland. The thymus gland is a small organ located in the upper chest, behind the sternum. It plays a crucial role in the development and maturation of T-cells, which are important for immune function. Therefore, it is logical to conclude that thymosin comes from the thymus gland.
22.
Gland from which thyroid stimulating hormone (TSH) comes?
Correct Answer
C. Anterior pituitary
Explanation
tropic
23.
Gland from which thyroxine/thyroid hormone comes?
Correct Answer
B. Thyroid
Explanation
The gland from which thyroxine/thyroid hormone comes is the thyroid gland. The thyroid gland is located in the neck and is responsible for producing and releasing hormones that regulate metabolism and growth. Thyroxine is one of the hormones produced by the thyroid gland and plays a crucial role in maintaining the body's energy levels and controlling various bodily functions.
24.
Gland from which vasopressin/antidiuretic hormone (ADH) comes?
Correct Answer
A. Posterior pituitary
Explanation
The posterior pituitary gland is responsible for producing vasopressin, also known as antidiuretic hormone (ADH). This hormone plays a crucial role in regulating water balance and blood pressure in the body. It acts on the kidneys to increase water reabsorption and decrease urine production, helping to conserve water and prevent dehydration. The other options listed, such as the anterior pituitary, kidney, thymus, and endocrine pancreas, do not produce vasopressin/ADH.
25.
What do releasing and inhibiting factors target?
Correct Answer
B. Anterior pituitary
Explanation
Releasing and inhibiting factors target the anterior pituitary. These factors are released by the hypothalamus and travel through the blood vessels to the anterior pituitary gland, where they regulate the release of various hormones. By targeting the anterior pituitary, these factors play a crucial role in controlling hormone production and secretion, ultimately influencing various physiological processes in the body.
26.
What does thyroid stimulating hormone target?
Correct Answer
A. Thyroid
Explanation
Thyroid stimulating hormone (TSH) targets the thyroid gland. TSH is produced by the pituitary gland and its main function is to stimulate the production and release of thyroid hormones from the thyroid gland. These thyroid hormones play a crucial role in regulating metabolism, growth, and development in the body. Therefore, TSH targets the thyroid gland to ensure proper functioning of the thyroid and maintain overall hormonal balance in the body.
27.
What does luteinizing hormone target?
Correct Answer
C. Ovary or testes
Explanation
Luteinizing hormone (LH) is a hormone that is primarily produced and released by the anterior pituitary gland. However, it does not target the anterior pituitary itself. Instead, LH targets the ovaries in females and the testes in males. In females, LH plays a crucial role in the menstrual cycle, stimulating the release of an egg from the ovary (ovulation) and the production of progesterone. In males, LH stimulates the production of testosterone in the testes. Therefore, the correct answer is ovary or testes.
28.
What does follicle stimulating hormone target?
Correct Answer
A. Ovaries/testes
Explanation
Follicle stimulating hormone (FSH) targets the ovaries in females and the testes in males. In females, FSH stimulates the growth and development of ovarian follicles, which contain the eggs. In males, FSH stimulates the production of sperm cells in the testes. Therefore, the correct answer is ovaries/testes.
29.
What does vasopressin/antidiuretic hormone stimulate?
Correct Answer
B. Kidneys
Explanation
Vasopressin, also known as antidiuretic hormone, stimulates the kidneys. It plays a crucial role in regulating water balance in the body by increasing water reabsorption in the kidneys. This hormone helps to concentrate urine and reduce the volume of urine produced, thereby preventing excessive water loss from the body.
30.
What does oxytocin stimulate? (2)
Correct Answer(s)
B. Breast
C. Uterus
Explanation
BOTH breast and uterus are right
31.
What does calcitonin target? (2)
Correct Answer(s)
A. Bone
C. Kidney
Explanation
bone and kidney
32.
What does parathyroid hormone target? (3)
Correct Answer(s)
A. Bone
C. Kidney
D. Small intestine
Explanation
b,k,si
33.
What does aldosterone target?
Correct Answer
C. Kidney
Explanation
Aldosterone targets the kidney. Aldosterone is a hormone produced by the adrenal glands that plays a crucial role in regulating the balance of water and electrolytes in the body. It acts on the kidney to increase the reabsorption of sodium ions and the excretion of potassium ions, thereby helping to maintain the body's fluid and electrolyte balance.
34.
What does atrialnatriuretic factor target?
Correct Answer
C. Kidney
Explanation
Atrial natriuretic factor, also known as atrial natriuretic peptide (ANP), primarily targets the kidney. ANP is a hormone released by the atria of the heart in response to increased blood volume and pressure. Its main function is to promote the excretion of sodium and water by the kidneys, thereby reducing blood volume and blood pressure. This helps to regulate fluid balance and maintain normal blood pressure levels.
35.
What does erythropoeitin target?
Correct Answer
B. Bone marrow
Explanation
Erythropoietin is a hormone that stimulates the production of red blood cells. It is produced by the kidneys and acts on the bone marrow, specifically targeting the cells responsible for producing red blood cells. Therefore, the correct answer is bone marrow.
36.
Which raises blood glucose concentration?
Correct Answer
B. Glucagon
Explanation
Glucagon raises blood glucose concentration. It is a hormone produced by the pancreas that stimulates the liver to convert stored glycogen into glucose, which is then released into the bloodstream. This process is known as glycogenolysis. By increasing blood glucose levels, glucagon helps to regulate blood sugar levels and provide energy to the body. On the other hand, insulin lowers blood glucose concentration by facilitating the uptake of glucose into cells and promoting its storage as glycogen.
37.
Which lowers blood glucose concentration?
Correct Answer
A. Insulin
Explanation
Insulin is a hormone produced by the pancreas that helps regulate blood glucose levels. It acts by facilitating the uptake of glucose from the bloodstream into cells, thereby lowering blood glucose concentration. Insulin promotes the storage of glucose in the liver and muscles as glycogen and also stimulates the conversion of glucose into fat for long-term energy storage. Overall, insulin plays a crucial role in maintaining normal blood sugar levels and preventing hyperglycemia.
38.
Which increases glycogen and fat storage?
Correct Answer
A. Insulin
Explanation
Insulin increases glycogen and fat storage. It is a hormone produced by the pancreas that helps regulate blood sugar levels. When insulin is released, it signals cells in the liver, muscles, and fat tissue to take up glucose from the bloodstream and store it as glycogen. Insulin also promotes the conversion of excess glucose into fat for long-term energy storage. Therefore, the presence of insulin in the body leads to increased glycogen and fat storage.
39.
Which decreases glucose and fat storage?
Correct Answer
B. Glucagon
Explanation
Glucagon decreases glucose and fat storage. Glucagon is a hormone that is released by the pancreas when blood sugar levels are low. It works by stimulating the liver to convert stored glycogen into glucose, which is then released into the bloodstream. This helps to increase blood sugar levels and provide energy to the body. Additionally, glucagon promotes the breakdown of fats in adipose tissue, leading to a decrease in fat storage.
40.
Luteinizing hormone...
Correct Answer
B. Causes ovulation and testosterone synthesis
Explanation
Luteinizing hormone is responsible for causing ovulation and testosterone synthesis. It stimulates the release of an egg from the ovary in females, leading to ovulation. In males, it stimulates the production of testosterone in the testes, which is essential for the development and maintenance of male reproductive tissues and secondary sexual characteristics.
41.
Prolactin...
Correct Answer
A. Causes milk prod in mammary glands
Explanation
Prolactin is a hormone that is responsible for stimulating milk production in the mammary glands. It is produced in the pituitary gland and plays a crucial role in lactation. When a woman is pregnant, prolactin levels increase, preparing the mammary glands for milk production. After childbirth, prolactin continues to be released, allowing for the production and secretion of breast milk. Therefore, the statement "Prolactin causes milk production in mammary glands" is correct.
42.
Oxytocin...
Correct Answer
D. Causes milk letdown and uterine contractions
Explanation
Oxytocin is a hormone that is responsible for causing milk letdown and uterine contractions. When a baby suckles at the breast, oxytocin is released, which stimulates the muscles around the milk ducts to contract, allowing milk to be released. Additionally, during childbirth, oxytocin is released in large amounts, causing contractions of the uterine muscles to help push the baby out. Therefore, the correct answer is that oxytocin causes milk letdown and uterine contractions.
43.
Gland from which sex steroids come?
Correct Answer
D. Testes, ovaries
Explanation
The testes primarily produce testosterone, a key male sex steroid, while the ovaries and placenta produce estrogens and progesterone, which are crucial female sex steroids. Additionally, the adrenal cortex also contributes by producing a minor amount of sex steroids like androgens and estrogens, but the main sources are the testes and the ovaries/placenta for their respective sex-specific hormones.