1.
Which Muscle opens and closes the nasal openings
Correct Answer
C. Nazalis
Explanation
The muscle that opens and closes the nasal openings is the Nazalis muscle. It is responsible for controlling the movement of the nostrils, allowing them to widen or narrow. This muscle plays a role in regulating airflow through the nasal passages and can be involved in actions such as sniffing or flaring of the nostrils.
2.
What do you chew with
Correct Answer
B. Masseter
Explanation
The masseter is a muscle that is responsible for chewing. It is located in the jaw area and is one of the strongest muscles in the human body. When you chew, the masseter muscle contracts and helps to move the jaw up and down, allowing you to break down food into smaller pieces. The other muscles mentioned, such as the mentalis, orbicularis oris, and buccinator, are also involved in the chewing process, but the masseter is the primary muscle responsible for this action.
3.
What action does the risorus make?
Correct Answer
B. Draws up corners of mouth
Explanation
The risorus muscle is responsible for drawing up the corners of the mouth. This action is commonly associated with smiling or expressing happiness.
4.
Where abouts is the ethmoid bone
Correct Answer
C. Inside the upper eye
Explanation
The ethmoid bone is located inside the upper eye. It is a delicate, cube-shaped bone that forms part of the orbital cavity and helps to separate the nasal cavity from the brain. It is situated between the nasal passage and the eye socket, contributing to the structure and support of the eye.
5.
Where is the lacrimal bone
Correct Answer
A. Forms the inner wall of the eye
Explanation
The lacrimal bone is located in the inner wall of the eye. It is a small, thin bone that forms part of the orbit (eye socket). It helps to protect the eye and also plays a role in the production and drainage of tears.
6.
Where abouts is external auditory canal
Correct Answer
B. Side of the head below the temples
Explanation
The external auditory canal is located on the side of the head below the temples. It is the part of the ear that leads from the outer ear to the middle ear.
7.
How many bones are there altogether in the skull
Correct Answer
B. 22
Explanation
The correct answer is 22 because the skull is made up of 22 bones. These bones include the cranial bones, which form the top and sides of the skull, and the facial bones, which make up the front of the skull. Together, these bones provide protection for the brain and support for the structures of the face.
8.
How many bones altogether form the cranium
Correct Answer
B. 8
Explanation
The cranium is the skull, which is made up of several bones that protect the brain. There are a total of eight bones that form the cranium, including the frontal, parietal, temporal, occipital, sphenoid, and ethmoid bones. These bones are all fused together to provide strength and protection to the brain.
9.
How many different muscles are there on the face and neck
Correct Answer
A. 17
Explanation
There are a total of 17 different muscles on the face and neck.
10.
What type of bone is the sphenoid
Correct Answer
D. Cranial
Explanation
The sphenoid bone is classified as cranial. This is because the sphenoid bone is located at the base of the skull and forms part of the cranial floor. It is a complex bone that has multiple processes and articulations with other cranial bones, contributing to the structure and support of the cranium.
11.
How many thoracic bones are there
Correct Answer
D. 12
Explanation
There are 12 thoracic bones in the human body. The thoracic bones, also known as the thoracic vertebrae, are the bones located in the middle region of the spine, between the cervical vertebrae in the neck and the lumbar vertebrae in the lower back. These bones provide support and protection to the spinal cord and also serve as attachment points for the ribs.
12.
Which muscle pulls the eyebrows together
Correct Answer
A. Corrugator
Explanation
The corrugator muscle is responsible for pulling the eyebrows together. This muscle is located between the eyebrows and helps create the vertical lines or furrows that appear when someone frowns or expresses worry or concentration. The frontalis muscle, on the other hand, is responsible for raising the eyebrows and creating horizontal forehead wrinkles. The Procerus and Obbicularis Occuli muscles are not directly involved in pulling the eyebrows together.
13.
Levator Labii is where
Correct Answer
B. Down the side of the nose
Explanation
The correct answer is "Down the side of the nose". The levator labii muscles are a group of muscles located in the face. They are responsible for elevating the upper lip and are situated on either side of the nose. These muscles help in various facial expressions, such as smiling or sneering.
14.
The platysma does what
Correct Answer
B. Clenches the neck
Explanation
The platysma is a thin, flat muscle located in the neck region. It plays a role in clenching or tensing the neck muscles. When the platysma contracts, it causes the skin in the neck area to tighten and the neck to become more prominent. This muscle is involved in various movements of the neck, such as during swallowing, grimacing, or expressing emotions like fear or anger.