EOR TEST 2017 Flashcards

1
Q

With, regard to the axillary artery and its branches, the

a. axillary artery is a continuation of the subclavian artery at the lateral margin of the first rib. b. cords of the brachial plexus are related to the 2nd part of the axillary artery
c. subscapular artery is a branch from the 3rd part of the axillary atery.
d. posterior circumflex humeral artery passes through the triangular space
e. thoracodorsal artery is a direct branch from the first part of the axillary artery

A

A,B,C

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2
Q

The glenohumeral (shoulder) joint:

a. Is a ball and socket type of synovial joint.
b. Is abducted by the teres major and teres minor muscles.
c. Is laterally rotated by the subscapularis muscle.
d. Is supported on the lateral side by the tendons of the rotator cuff
e. The axillary nerve may be injured in dislocations of the glenohumeral joint.

A

A,E

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3
Q

In the arm:

a. The profunda brachi artery is closely related to the surgical neck of the
b. Biceps brachii supinates and flexes the arm.
c. The brachial artery may be palpated just medial to the biceps brachi muscle.
d. The musculocutaneous nerve continues as the lateral cutaneous nerve of forearmn.
e. Brachial veins are joined to form the cephalic vein

A

B,D

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4
Q

With regard to the brachial plexus:

a. It originates from the ventral rami of C5, C6, C7, C8 and T1.
b. Its trunks emerge between scalenus anterior and scalenus medius muscles.
c. Its anterior divisions of upper and lower trunks form the lateral cord
d. Its ulnar nerve is a branch of the medial cord.
e. Injury of the lower trunk, results in Erb-Duchenne palsy.

A

A,D

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5
Q

With regard to the cubital fossa, the:

a. bicipital aponeurosis reinforces the roof
b. contents include the ulnar nerve.
c. radial artery pulsations can be palpate
d. lateral border is formed by the brachioradialis muscle
e. median cubital vein lies superficial to the bicipital aponeurosis.

A

A,D,E

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6
Q

A fracture of the humerus at the

a. anatomical neck may result in damage to the musculocutaneous nerve.
b. radial groove may result in the condition referred to as wrist drop
c. surgical neck may result in damage to the axillary nerve.
d. medial epicondyle may result in damage to the ulnar nerve.
e. proximal end may injure the upper subscpaular nerve

A

C,D

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7
Q

The female breast:

a. Is a modified sweat gland.
b.Is supplied by perforating branches of the internal thoracic artery
c. Has a nipple which lies at the level of the 2nd intercostal space in a nulliparous female
d. Is drained by the lateral group of axillary lymph nodes
e. Its areola contains sebaceous glands

A

A,B,E

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8
Q

Regarding the muscles of the pectoral girdle:

a. Pectoralis major inserts into the lateral lip of the intertubercular groove.
b. Pectoralis minor is innervated by the medial pectoral nerves.
c. Subclavius is attached to the posterior surface of the medial third of clavicle.
d.Paralysis of coracobrachialis leads to”winging of the scapula.
e. Deltoid muscle initiates abductionlat the shoulder joint.

A

A,B,C

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9
Q

Regarding the thenar muscles of the hand:
a. They are situated on the medial surface on the palm.
b. Abductor pollicis brevis is supplied by the median nerve.
c. Adductor pollicis is an adductor of the 2”d finger.
d. Opponens pollicis brings the tip of the thumb into contact with the 5h finger.
e. Flexor pollicis brevis is supplied by the median and ulnar nerves.

A

B,D,E

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10
Q

Regarding the elbow joint:
a. It is a hinge synovial joint.
b. The biceps brachii acts to extend this joint.
c. The head of the radius aticulates with the capitulum.
d. The joint capsule is strengthened by collateral ligaments.
e. The ulnar collateral ligament is continuous with the annular ligament.

A

A,C,D,E

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11
Q

With regard to the carpal bones, the:

a. capitate is the largest in size.
b. pisiform lies on the trapezoid.
c. scaphoid is the most frequently fractured.
d. lunate articulates with the ulna bone.
e. trapezium articulates with first metacarpal bone.

A

A,C,E

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12
Q

Concerning the anterior and posterior compartments of the forearm:

a. Pronator teres pronates the distal radioulnar joint.
b. Brachioradialis extends the forearm at the elbow joint.
c. Extensor carpi ulnaris is supplied by the ulna nerve.
d. Flexor digitorum profundus flexes the distal phalanges.
e. Extensor carpi ulnaris adducts the hand.

A

A,D,E

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13
Q

Concerning the radius:

a. It is classified asa flat bone.
b. lt ossifies through endochondral ossification.
c. It is the medial bone of the forearm.
d. The distal end of the radius articulates with the lunate and scaphoid bones.
e. The head of the radiusarticulates ith the radial notch of the ulna.

A

B,D,E

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14
Q

Concerning the carpal tunnel:

a. Carpal tunnel syndrome results from the compression of the ulnar nerve.
b. The carpal bones form the posterior boundary or floor of the tunnel.
c. The flexor retinaculum forms the roof of the tunnel.
d. The flexor retinaculum attaches to the pisiform and hook of hamate laterally.
e. Uinarand radial bursae form part of the contents.

A

B,C,E

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15
Q

The median nerve:
a. Arises from the posterior cord of the brachial plexus.
b. Innervates the flexor digitorum superficialis.
c. Supplies the brachialis muscle.
d. Innervates the thenar muscles via the recurrent branch.
e. Innervates the 3rd and 4h lumbricals.

A

B,D

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16
Q

With regard to epithelium:

a. It functions as a selective barrier.
b. The number of cell layers is used as classification criteria.
c. Pseudostratified epithelium is found in the urinary bladder
d. It has an absorptive function in the small intestine
e. Microvilli are “long, motile, cytoplasmic structures”

A

A,B,D

17
Q

With regard to junctional complexes:
a. Zonula occludens serves primarily as a diffusion barrier.T
b. Macula adherens is an attachment site for intermediate filaments.
c. Gap junctions interact with the network of actin filaments.
d. Hemidesmosomes are cell-to-extracelular matrix junctions.
e. Anchoring junctions function in fluid transport.

A

A,B,D

18
Q

With regard to glands:

a, The submandibular gland has a branched duct.
b. Exocrine glands secrete their products into blood vessels.
c. The colon has simple tubular glands.
d. The sebaceous gland is classified as a simple coiled tubular gland”.
e. Goblet cells have a merocrine mode of secretion.

A

A,C,E

19
Q

With regard to mucous secretory end-pieces:

a. The cytoplasm is pale staining.
b. Their mode of secretion is merocrine.
c. The nuclei are “round and centrally placed”.
d. The nature of secretion is proteinaceous.
e. Myoepithelial cells assist with secretion.

A

A,B,E

20
Q

Dense irregular connective tissue:

a. Has little ground substance.
b. ls highly cellular.
c. Contains collagen fibres which stain “eosinophilically with H and E”.
d. Is found in tendons.
e. Has rows of fibroblasts aligned with collagen fibres.

A

A,B

21
Q

Reticular fibres:
a. Are produced by epithelial cells.
b. Provide a supporting framework.
c. Allow tissues to respond to “stretch and distention”.
d. Are prominent in wound healing.
e. Are found in the liver.

A

B,D,E

22
Q

Fibroblasts:

a. Are principal connective tissue cells.
b. Synthesise collagen fibres. C.Have round nuclei.
d. Belong to the group of resident connective tissue cel types.
e. Have lysosomes in their cytoplasm.

A

A,B,D

23
Q

During the second week of embryonic development:

a. A bilaminar embryonic disc is formed.
b. The primary yolk sac is established.
c. The primitive streak is formed.
d. Embryonic capillaries are formed.
e. The exocoelomic membrane is formed.

A

A,B,D,E

24
Q

The main results of fertilization are:

a. A bilaminar embryonic disc is formed.
b. The primary yolk sac is established.
c.The primitive streak is formed.
d. Embryonic capillaries are formed.
e. The exocoelomic membrane is formed.

A

A,C,D

25
Q

With regard to the chorionic villi:

a. The secondary villus consists of embryonic capillaries.
b. The primary villus consists of the syncytiotrophoblast layer.
c. Extraembryonic mesoderm is present in tertiary villi. T
d. They form the maternal part of the placenta.
e. They secrete a hormone used to detect pregnancy.

A

B,C,E