1.
Whitch of the following statements is correct regarding the long head of the biceps femoris muscle
Correct Answer
A. It crosses two joints
Explanation
The correct answer is that the long head of the biceps femoris muscle crosses two joints. This means that it spans across two different joints in the body, namely the hip joint and the knee joint. The biceps femoris muscle is one of the hamstring muscles located in the back of the thigh, and its long head specifically crosses both the hip and knee joints, allowing it to contribute to movements at both joints.
2.
The semimembranous muscle is responsible of what movements of the lower extremity?
Correct Answer
A. Extension of the hip and flexion of the knee
Explanation
The semimembranous muscle is responsible for the movement of extension of the hip and flexion of the knee. This muscle is located in the back of the thigh and plays a role in both extending the hip joint, which involves moving the leg backward, and flexing the knee joint, which involves bending the leg at the knee. These movements are important for various activities such as walking, running, and climbing stairs.
3.
The popliteal fossa is bounded by the gastrocnemius,semimembranosus ,semitendinosus and which other muscle ?
Correct Answer
A. Biceps femoris
Explanation
The popliteal fossa is a diamond-shaped space located at the back of the knee. It is bounded by several muscles, including the gastrocnemius, semimembranosus, semitendinosus, and the biceps femoris. The biceps femoris is a muscle located on the back of the thigh and is one of the muscles that forms the boundary of the popliteal fossa. Therefore, the correct answer is Biceps femoris.
4.
Branches of the brachial artery contribute to the anastomoses circulation around the
Correct Answer
A. Head of the humerus
Explanation
The branches of the brachial artery contribute to the anastomoses circulation around the head of the humerus. This means that these branches help to supply blood to the area around the head of the humerus bone, ensuring that it receives adequate oxygen and nutrients. This is important for the proper functioning and health of the bone and the surrounding tissues.
5.
A rugby player sustained injury to his right supraspinatus muscle. Injury to supraspinatus muscle will affect
Correct Answer
A. Initiation of abduction of the humerus
Explanation
Injury to the supraspinatus muscle will affect the initiation of abduction of the humerus. The supraspinatus muscle is one of the four muscles that make up the rotator cuff in the shoulder. It is responsible for initiating the movement of lifting the arm away from the body, known as abduction. When the supraspinatus muscle is injured, it can lead to weakness or pain during the initiation of this movement. This can limit the range of motion and functionality of the shoulder joint.
6.
Which of the following muscles combination will work together to abduct the wrist
Correct Answer
A. Extensor carpi radialis brevis and flexor carpi radialis
Explanation
The correct answer is Extensor carpi radialis brevis and flexor carpi radialis. These two muscles work together to abduct the wrist. The extensor carpi radialis brevis is responsible for extending and abducting the wrist, while the flexor carpi radialis is responsible for flexing and abducting the wrist. By working together, these muscles allow for the abduction movement of the wrist.
7.
The intertubercular groove of the humerus contain the
Correct Answer
A. Tendon of the long head of the biceps brachii muscle
Explanation
The intertubercular groove of the humerus contains the tendon of the long head of the biceps brachii muscle. The intertubercular groove is a shallow groove located on the anterior side of the humerus bone. It serves as a pathway for the tendon of the long head of the biceps brachii muscle, which runs from the shoulder joint to the elbow joint. This tendon helps to stabilize the shoulder joint and assists in various movements of the arm, such as flexion and supination.
8.
All of the muscles of the superficial posterior compartment of the leg insert into the
Correct Answer
A. Calcaneus
Explanation
The correct answer is Calcaneus. The muscles of the superficial posterior compartment of the leg, including the gastrocnemius, soleus, and plantaris, all insert into the calcaneus bone. These muscles are responsible for plantar flexion of the foot and ankle, and their insertion into the calcaneus allows them to exert force on the heel bone, aiding in movements such as walking, running, and jumping. The fibula is not directly involved in the insertion of these muscles, while the talus and first metatarsal are not part of the superficial posterior compartment of the leg.
9.
The medial and lateral femoral circumflexes arteries are usually direct branches of the
Correct Answer
A. Profanda femoris artery
Explanation
The correct answer is Profunda femoris artery. The medial and lateral femoral circumflex arteries are typically direct branches of the profunda femoris artery. The profunda femoris artery is a major branch of the femoral artery and provides blood supply to the muscles of the thigh. It is responsible for supplying oxygenated blood to the femoral head and neck, as well as the surrounding muscles and tissues.
10.
Which of the following arteries does not participate in the blood supply of the hip joint
Correct Answer
A. Pudendal
Explanation
The pudendal artery does not participate in the blood supply of the hip joint. The hip joint is mainly supplied by the obturator, femoral, and medial femoral circumflex arteries. The pudendal artery primarily supplies blood to the perineum and external genitalia. Therefore, it does not play a role in the blood supply of the hip joint.
11.
Fracture of which following bones will affect the insertion of fibularis brevis muscle
Correct Answer
A. Base of the fifth metatarsal
Explanation
Fracture of the base of the fifth metatarsal will affect the insertion of the fibularis brevis muscle. The fibularis brevis muscle originates from the lower two-thirds of the lateral surface of the fibula and inserts onto the tuberosity of the fifth metatarsal. Therefore, if the base of the fifth metatarsal is fractured, it can disrupt the insertion point of the fibularis brevis muscle, leading to impaired function and potentially causing pain and instability in the foot.
12.
The sartorius muscle
Correct Answer
A. Will flex the leg at knee joint
Explanation
The sartorius muscle is a long, thin muscle that runs down the front of the thigh. It is responsible for flexing the leg at the knee joint, which means it helps to bring the lower leg closer to the upper leg. The sartorius muscle only crosses one joint, which is the knee joint, making it a uniaxial muscle. It is not a medial rotator of the thigh, as its primary function is knee flexion. The sartorius muscle lies superficially, or on top of, the adductor longus muscle, not deep to it.
13.
How many muscle in the lateral side of leg:
Correct Answer
A. Two
Explanation
The correct answer is two because there are two main muscles located on the lateral side of the leg: the fibularis longus and the fibularis brevis. These muscles are responsible for eversion of the foot and stabilization of the ankle joint.
14.
The function of tensor fascia latae:
Correct Answer
A. stabilization of hip and knee.
Explanation
The tensor fascia latae is a muscle located on the side of the hip. Its primary function is to stabilize the hip and knee joints. It helps to keep the hip joint stable during movements such as walking, running, and standing. Additionally, it assists in maintaining proper alignment of the knee joint, preventing excessive inward rotation of the knee. This stabilization is crucial for maintaining balance and preventing injuries during various activities.
15.
A 58-year-old female employee of a h ing business visits the outpatient clinic with a complaint of a constant burning pain in her knees. Clinical examinations reveal a “housemaid’s knee” condition Which of the following structures is most likely affected?
Correct Answer
A. Prepatellar bursa
Explanation
The correct answer is the Prepatellar bursa. Housemaid's knee, also known as prepatellar bursitis, is a condition characterized by inflammation of the prepatellar bursa, which is located in front of the kneecap. This condition is commonly seen in individuals who frequently kneel or put pressure on their knees, such as housemaids or carpet layers. The constant burning pain experienced by the female employee is consistent with the symptoms of prepatellar bursitis.
16.
21-year-old female softball pitcher is examined in the emergency department after she was struck in the arm by a line drive. Plain radiographic and MRI studies show soft tissue injury to the region of the spiral
groove, with trauma to the radial nerve. Which of the following muscles would be intact after this injury?
Correct Answer
A. Flexor carpi ulnaris
Explanation
The flexor carpi ulnaris muscle is not innervated by the radial nerve, so it would remain intact after the injury to the radial nerve. The other muscles listed (extensor indicis, brachioradialis, and extensor carpi radialis longus) are all innervated by the radial nerve and would be affected by the injury.
17.
Which muscle is responsible of unlock extended knee :
Correct Answer
A. Popliteus muscle.
Explanation
The popliteus muscle is responsible for unlocking the extended knee. This muscle is located at the back of the knee joint and plays a crucial role in the rotation of the tibia, allowing the knee to flex and unlock from its extended position. The other muscles mentioned, such as the plantaris muscle, biceps femoris, and soleus muscle, do not have the specific function of unlocking the extended knee.
18.
Injury to subcutaneous olecranon bursa cause which of following :
Correct Answer
A. Student’s elbow
Explanation
Injury to the subcutaneous olecranon bursa can cause Student's elbow. This condition is also known as olecranon bursitis, which is inflammation of the bursa located at the back of the elbow. It is commonly seen in students who frequently rest their elbows on hard surfaces while studying. The repeated pressure and friction on the bursa can lead to irritation and inflammation, resulting in the development of bursitis. Symptoms may include pain, swelling, and tenderness at the back of the elbow.
19.
Laboratory studies in the outpatient clinic on a 24-year-old woman included assessment of circulating blood chemistry. Which of the following arteries is most likely at risk during venipuncture at the cubital fossa?
Correct Answer
A. Brachial
Explanation
During venipuncture at the cubital fossa, the brachial artery is most likely at risk. The cubital fossa is located on the anterior aspect of the elbow, and it contains the brachial artery, which is a major blood vessel that supplies the arm. When performing venipuncture in this area, there is a risk of accidentally puncturing the brachial artery, which can lead to bleeding and potential complications. Therefore, it is crucial to be cautious and skilled when performing venipuncture in the cubital fossa to avoid damaging the brachial artery.
20.
A 36-year-old man is brought to the emergency department because of a deep knife wound on the medial side of his distal forearm. He is unable to hold a piece of paper between his fingers and has sensory loss on the medial side of his hand and little finger. Which nerve is most likely injured
Correct Answer
A. Ulnar
Explanation
Based on the symptoms described, it is most likely that the ulnar nerve is injured. The ulnar nerve innervates the muscles that control finger abduction and adduction, which explains the patient's inability to hold a piece of paper between his fingers. Additionally, the ulnar nerve provides sensory innervation to the medial side of the hand and little finger, which aligns with the patient's sensory loss in those areas. Therefore, the ulnar nerve is the most likely nerve to be injured in this scenario.
21.
19-year-old man is brought to the emergency department after dislocating his shoulder while playing soccer. Following reduction of the dislocation, he has pain over the dorsal region of the shoulder and cannot abduct the arm normally. An MRI of the shoulder shows a torn muscle. Which of the following muscles is most likely to have been damaged by this injury?
Correct Answer
A. Supraspinatus
Explanation
The supraspinatus muscle is most likely to have been damaged by this injury. The patient's inability to abduct the arm normally and the pain over the dorsal region of the shoulder are consistent with a supraspinatus tear. The supraspinatus muscle is responsible for initiating abduction of the arm and is commonly injured in shoulder dislocations. The other muscles listed are not typically involved in this type of injury.
22.
Adductor canal located in :
Correct Answer
A. Anterior middle third of the thigh.
Explanation
The adductor canal is located in the anterior middle third of the thigh. This canal is a passageway that runs through the thigh and contains the femoral artery, femoral vein, and saphenous nerve. It is bordered by the vastus medialis muscle and the adductor longus and magnus muscles. The adductor canal is an important anatomical structure as it provides a pathway for neurovascular structures to pass from the thigh to the lower leg.
23.
An example of a fibrous joint include:
Correct Answer
A. Structures of the vault of the skull
Explanation
The structures of the vault of the skull are an example of a fibrous joint because they are connected by fibrous connective tissue called sutures. Sutures are immovable joints that hold the bones of the skull together, providing stability and protection to the brain. Unlike other joints in the body, such as the hip joint or pubic symphysis, which allow for movement, the structures of the vault of the skull are fixed and do not allow any significant movement.
24.
The nerve supply of latissimus dorsi is from the:
Correct Answer
A. Thoracodorsal nerve
Explanation
The correct answer is thoracodorsal nerve. The latissimus dorsi muscle is innervated by the thoracodorsal nerve, which arises from the posterior cord of the brachial plexus. This nerve provides motor innervation to the latissimus dorsi, allowing for movements such as extension, adduction, and medial rotation of the arm. The axillary nerve innervates the deltoid and teres minor muscles, the long thoracic nerve innervates the serratus anterior muscle, and the dorsal scapular nerve innervates the rhomboid muscles.
25.
Which nerve is a branch of the lateral cord of the brachial plexus?
Correct Answer
A. Musculocutaneous nerve
Explanation
The musculocutaneous nerve is a branch of the lateral cord of the brachial plexus. It innervates the muscles in the anterior compartment of the arm, including the biceps brachii, brachialis, and coracobrachialis. It also provides sensory innervation to the lateral aspect of the forearm. The other options listed, thoracodorsal nerve, ulnar nerve, and lower subscapular nerve, are not branches of the lateral cord of the brachial plexus.