30 Questions
Which muscle has an insertion point at the greater tuberosity of the humerus?
Deltoid
What is the origin of the pectoralis major muscle?
Clavicular head: Med.½ of clavicle front. Sternocostal head: Front of sternum & upper 6 costal cartilages.
Which nerve supplies the serratus anterior muscle?
N.to serratus ant.
What is the action of the latissimus dorsi muscle?
Extension, adduction, and med. rotation of the arm.
Where is the insertion point of the supraspinatus muscle?
Upper facet of humerus
What is the origin of the teres minor muscle?
Upper 2/3 of dorsum lat. border scapula.
What are the two terminal branches of the brachial artery at the level of the radius neck?
Radial and ulnar arteries
What is the type of joint formed by the acromion and the clavicle?
Synovial plane
What muscle is attached to the upper lip of the spine of the scapula?
Trapezius
What is the name of the fossa that contains the supraspinatus muscle?
Supraspinous fossa
What is the type of joint formed by the glenoid cavity and the humerus?
Synovial ball and socket
What muscle is attached to the lower 1/3 of the latissimus dorsi border of the scapula?
Teres major
What is the function of the median nerve in the upper limb?
Flexion of elbow, wrist, and proximal and middle phalanges of medial 4 fingers
Which nerve is responsible for supination of the extended elbow?
Interosseous membrane
What is the origin of the radial nerve?
Posterior cord of the brachial plexus (C5,6,7,8,T1)
Which nerve passes through the carpal tunnel?
Median nerve
What is the function of the ulnar nerve?
Flexion of the elbow and flexion and adduction of the wrist
What structures are attached to the interosseous membrane?
Flexor pollicis longus, flexor digitorum profundus (ant.), extensor pollicis longus and brevis (post.)
What is the relation of the phrenic nerve to the lung root?
Infront of lung root
Which phrenic nerve is shorter and why?
Right phrenic nerve, because it is nearly vertical and has a higher right cupola
Where does the vagus nerve enter the thorax?
Through the inlet, in front of the subclavian artery
What is the relation of the vagus nerve to the lung root?
Behind lung root, forming the post-pulmonary plexus
Where does the sympathetic chain trachea enter the thorax?
In front of the 1st rib neck, as a continuation of the cervical part
What is the termination point of the sympathetic chain trachea in the thorax?
Behind the diaphragm at the medial arcuate ligament, to continue as the lumbar part
Where does the pulmonary trunk begin and what are its branches?
The pulmonary trunk begins at the pulmonary orifice of the Rt. ventricle, opposite the Lt. 3rd sternocostal junction. Its branches are the Rt. and Lt. pulmonary arteries.
What is the course of the ascending aorta and what are its branches?
The ascending aorta begins at the aortic orifice of the Lt. ventricle, opposite the sternal end of the Lt. 3rd intercostal space, and its branches are the Rt. and Lt. coronary arteries.
What is the relation of the aortic arch to the brachiocephalic vein?
The aortic arch is superior to the Lt. brachiocephalic vein and its origin of three branches.
What is the course of the descending aorta and what are its branches?
The descending aorta begins on the Lt. side of the disc between T4 and 5, as a continuation of the aortic arch, and its branches are the lower 9 postintercostal and subcostal arteries, and the Lt. bronchial artery.
What is the relation of the descending aorta to the esophagus?
The descending aorta has anterior and right relations to the esophagus.
Where does the superior vena cava begin and end?
The superior vena cava begins at the Rt. 1st costal cartilage, by the union of the Rt. and Lt. brachiocephalic veins, and ends at the Rt. 3rd costal cartilage, by opening into the Rt. atrium.
Test your knowledge of the origin, insertion, and actions of upper limb muscles, including pectoralis major and minor, and serratus anterior. Identify the muscles and their functions. Great for anatomy students and healthcare professionals.
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