Anatomy Last Minute Flashcards
(146 cards)
Which is true regarding the right vagus and phrenic nerves and their relations in the superior mediastinum?
A Right phrenic nerve passes along the left side of the right brachiocepahlic vein, SVC and the pericardium over the right atrium
B Right phrenic nerve enters the superior mediastinum between the brachiocephalic trunk and the origin of the brachiocepahlic vein
C Right vagus nerve enter the superior mediastinum posterior to the sternoclavicular joint and common carotid artery
D Right vagus nerve passes through the superior mediastinum to the right of the trachea, posterior to the right brachiocephalic vein, SVC and root of the right lung
D
Which of the following is an example of hyaline cartilage?
A Intervertebral disc
B Knee meniscus
C Epiphyseal growth plates
D Articular surface of clavicle
C
Which of the following is an example of a synovial joint?
A Distal tibulofibular joint
B Intervertebral disc
C Sternomanubrial joint
D Sacroiliac joint
D
Regarding hyaline cartilage, which of the following is correct?
A It forms epiphyseal growth plates
B It forms the glenoid labrum
C It does not ossify with age
D It is relatively vascular
A
Regarding the deep fascia, which of the following is incorrect?
A It is not present in the face
B It is insensate
C It is anchored firmly to the periostium
D It forms the retinaculae
B
Which of the following is an example of a secondary cartilaginous joint?
A A lambdoid suture
B A costochondral joint
C An intervertebral disc
D Temporomandibular joint
C
With respect to dermatomal nerve supply, which of the following is correct?
Your answer was not correct
A T6 lies at level of the nipple
B The umbilicus is supplied by T12
C C7 supplies the index finger
D The anterior axial line divides C6 and C7
C
Cell bodies for the motor supply of the trigeminal nerve lie in which of the following areas?
A In the hypothalamus
B In the cerebral cortex
C Posterior to the cerebral aqueduct
D In the pons
D
Regarding myotomes, which of the following statements is correct?
A A myotome is a muscle supplied by single peripheral nerve
B Foot inversion is L4, L5
C Shoulder adduction is C5
D Knee is flexion is L3,4
B
The myotome of the great toe extension is
A S1
B L4
C S2
D L5
D
Which movement of the upper limb does not involve C6?
A Wrist extension
B Pronation
C Supination
D Shoulder adduction
B
Pronation is C7, C8.
Supination = C6
Shoulder adduction and medial rotation C6, C7, C8.
Wrist flexion = C7
In which ganglion do the cell bodies of afferent taste fibres of the anterior two thirds of the tongue occur?
A Trigeminal
B Submandibular
C Genicular
D Otic
C
Which of the following dermatomes supplies the little toe?
A L4
B L5
C S1
D S2
C
L3= anterior and medial thigh and knee
L4= medial leg, medial ankle and side of foot
L5= lateral leg, dorsum of foot, medial sole, 1-3 toes
S1= lateral ankle, lateral side of dorsum and sole of foot, 4-5 toes (5th toe=little toe)
S2= Posterior leg, posterior thigh, buttocks and penis
Regarding the Brachial plexus, which of the following statements is incorrect?
A Cords enter the axilla above the first part of the axillary artery
B Divisions form behind the clavicle and enter the anterior triangle
C Cords embrace the 2nd part of the axillary artery
D Branches of the cords surround the third part of axillary artery
B
Which of the following does not pass through the clavipectoral fascia?
A Medial pectoral nerve
B Thoracoacromial artery
C Lymphatics
D Cephalic vein
A
Which muscle is supplied by the posterior interosseous nerve in the posterior compartment of the forearm?
A Brachioradilais
B Supinator
C Extensor carpi radialis longus (ECRL)
D Anconeus
B
Current textbook
Posterior compartment of the forearm
Superficial layer
Brachioradialis- Radial nerve (C5, C6, C7)
Extensor carpii radialis longus- Radial nerve (C6, C7)
Extensor carpi radialis brevis- Deep branch of radial nerve (C7, C8)
Extensor digitorium- Deep branch of radial nerve (C7, C8)
Extensor digiti minimi- Deep branch of radial nerve (C7, C8)
Extensor carpi ulnaris- Deep branch of radial nerve (C7, C8)
Deep Layer
Supinator- Deep branch of radial nerve (C7, C8)
Extensor indicis- Posterior interosseous nerve (C7, C8)-continuation of deep branch of radial nerve
Outcropping muscles of deep layer
Extensor pollicis longus- Posterior interosseous nerve (C7, C8)-continuation of deep branch of radial nerve
Abductor pollicis longus- Posterior interosseous nerve (C7, C8)-continuation of deep branch of radial nerve
Extensor polices brevis- Posterior interosseous nerve (C7, C8)-continuation of deep branch of radial nerve
Extra: Supinator is innervated by the deep branch of the radial nerve. The deep branch then becomes the posterior interosseous nerve upon exiting the supinator muscle. Supinator’s nerve roots are primarily from C6 (with some C5 involvement). There are other questions in this question bank which ask specifically about this.
Shoulder stability in abduction is due to which of the following?
A The pectoralis major muscle insertion
B The glenoid labrum
C The glenohumeral ligaments
D The musculotendinous cuff of the rotator cuff muscles
D
Which of the following muscles is not supplied by the posterior interosseus nerve?
A Extensor carpi ulnaris
B Supinator
C Brachioradialis
D Abductor pollicis longus
C
With regard to the sternoclavicular joint, which of the following statements is true?
A Is mostly stabilised by the costoclavicular ligament
B Is supplied by nerve branches from C8 and T1
C Contains two fibrocartilaginous discs
D Is the fulcrum of movements of the sterno-clavicular joint
A
Which of the following features protects against inferior dislocation of the abducted shoulder?
A Gleno-humeral joint
B Long head of triceps
C Glenohumeral ligament
D Coraco-acromial arch
B
In terms of the relationship of structures within the cubital fossa, which of the following is correct?
A The median nerve lies lateral to the brachial artery
B The radial nerve is medial to biceps tendon
C The ulnar artery lies superficial to the pronator teres
D The radial artery is a direct continuation of the brachial artery
D
The contents of the cubital fossa, from medial to lateral are median nerve, brachial artery, tendon of biceps bracii, radial nerve, and posterior interosseous nerve. The cubital fossa is the triangular area between pronator teres, brachioradialis and a line joining the humeral epicondyles. The ulnar artery passes deep to the deep head of pronator teres. The brachial artery enters the cubital fossa in the midline. Halfway down the fossa, it divides into the radial and ulnar arteries. The radial artery usually appears to be the direct continuation of the brachial artery, and the bigger ulnar artery branches off at an angle.
Regarding triceps, which of the following statements is correct?
A It has two heads
B The blood supply is from the posterior interosseous artery
C It is supplied by the radial nerve
D It stabilises the shoulder in abduction resisting inferior dislocation.
C
Which of the following statements is false in relation to the carpal tunnel?
A Flexor carpi radialis (FCR) tendon runs in a subcompartment of the flexor tunnel
B Flexor carpi ulnaris (FCU) lies in its own synovial sheath as it passes through the tunnel
C The tendon of palmaris longus (PL) lies above the retinaculum and is only partially attached to it
D Flexor digitorum superficialis (FDS) and flexor digitorum profundus (FDP) tendons lie within the same sheath at the tunnel
B
Regarding the quadrangular space, triangular interval and triangular space, which of the following statements is false?
A Teres minor forms a border of both the triangular space and quadrangular space
B Long head of triceps forms the medial border of the quadrangular space
C Quadrangular space admits the axillary nerve
D Triangular space transmits the radial nerve
D