120 Questions
What is the region between the shoulder and elbow joints called?
brachium
What is the bony structure that forms the apex of the shoulder?
acromion process
What is the joint formed by the articulation of the scapula and humerus?
glenohumeral joint
What is the region of the upper limb that extends from the elbow joint to the wrist joint?
antebrachium
What is the surface of the scapula that faces the thorax?
subscapular fossa
What is the passage for nerve and vessels located on the superior border of the scapula?
suprascapular notch
What is the bony structure that connects the upper limb to the rest of the skeleton?
clavicle
What is the shallow socket on the lateral angle of the scapula that articulates with the head of the humerus?
glenoid cavity
What is surrounding the scapula?
Layers of muscles
What type of fracture occurs at the distal 2cm of the radius?
Colles fracture
How many bones form the wrist?
8 short bones
What is the function of the pisiform bone?
To act as a sesamoid bone in the tendon of flexor carpi ulnaris muscle
What is the consequence of poor blood supply to the proximal scaphoid?
Bone necrosis
Which metacarpal is proximal to the base of the thumb?
Metacarpal I
How many phalanges do the fingers have?
3 phalanges
What is the name of the joint that connects the wrist to the forearm?
Radiocarpal joint
Which part of the scapula serves as the origin for the long head of the biceps brachii?
Supraglenoid tubercle
Which muscle in the anterior compartment of the arm is primarily responsible for the flexion of the forearm?
Brachialis
What is the insertion point of the coracobrachialis muscle?
Shaft of the humerus
Which nerve supplies the triceps muscle in the posterior compartment of the arm?
Radial nerve
Which head of the triceps originates from the infraglenoid tubercle of the scapula?
Long head
What is the primary action of the biceps brachii muscle?
Flexion and medial rotation of the forearm
Where does the brachialis muscle originate?
Shaft of the humerus
Which nerve innervates the muscles in the anterior compartment of the arm?
Musculocutaneous nerve
What type of muscle attachment is associated with the immovable point?
Origin
Which muscle acts as a flexor in the brachium region?
Biceps brachii
Which muscle is responsible for the extension of the head?
Trapezius
What action is performed by the semispinalis thoracis on the vertebral column?
Extension and contralateral rotation
What is the function of the quadratus lumborum?
Ipsilateral flexion of the lumbar vertebral column
Which muscle stabilizes adjacent vertebrae and helps maintain posture?
Multifidus
Which muscle group includes the iliocostalis, longissimus, and spinalis?
Erector spinae
What role does a fixator muscle play?
Prevents movement of a bone
Which muscle primarily elevates the scapula?
Levator scapulae
What is the main action of the pectoralis major during climbing?
Bringing the trunk upwards
Which of the following muscles assists in the protraction and rotation of the scapula?
Serratus Anterior
What is the insertion point of the latissimus dorsi?
Humerus (anterior) [intertubercular sulcus]
Which muscles form the rotator cuff around the shoulder joint?
Supraspinatus, infraspinatus, teres minor, subscapularis
Which muscle is primarily responsible for medial rotation of the humerus?
Subscapularis
Where does the brachial plexus primarily supply nerves?
Muscles and skin of the upper limb
Which artery and vein are a continuation of the subclavian artery and vein?
Axillary artery and vein
What is the nerve supply of the biceps brachii muscle?
Musculocutaneous nerve
Which part of the scapula serves as the origin for the long head of the biceps brachii?
Supraglenoid tubercle
What is the primary action of the brachialis muscle?
Flexion of the forearm
Which nerve is responsible for the nerve supply of the triceps muscle in the posterior compartment of the arm?
Radial nerve
What is the insertion point of the coracobrachialis muscle?
Shaft of the humerus
Which muscle is primarily responsible for the flexion of the forearm?
Biceps brachii
What is the nerve supply of the muscles in the anterior compartment of the arm?
Musculocutaneous nerve
Which nerve supplies the sensory and motor fibers of the brachial plexus?
Ventral rami of C5, C6, C7, C8, and T1
Which of the following bones is not part of the proximal row of carpal bones?
Trapezoid
Which fracture is associated with forced dorsiflexion of the wrist?
Colles fracture
What is the main outcome of the poor blood supply to the proximal scaphoid?
Bone necrosis
Which metacarpal is located proximal to the base of the little finger?
Metacarpal V
What is the characteristic of a comminuted fracture?
Bone crushes into fragments
What type of bone is the pisiform classified as?
Sesamoid bone
Which bones form the palm of the hand?
Metacarpals
How many phalanges are present in each finger, excluding the thumb?
Three
Which muscle is responsible for elevating the scapula and tilting the glenoid cavity inferiorly?
Levator scapulae
Which muscle inserts on the coracoid process of the scapula and plays a role in shoulder depression?
Pectoralis minor
Which muscle acts in the medial rotation of the humerus and has its origin on the costal surface of the scapula?
Subscapularis
Which muscle of the upper limb has its insertion at the medial border of the scapula and is involved in the protraction and rotation of the scapula?
Serratus anterior
Which muscle, when damaged in terms of its nerve supply, can cause shoulder drooping?
Trapezius
Which muscle's function includes the flexion, adduction, and medial rotation of the arm, and is utilized during climbing to bring the trunk upwards?
Pectoralis major
Which muscle originates from the lateral border of the scapula and laterally rotates the humerus?
Teres minor
Which muscle has its origin at the spinous processes of T2-T5 and its insertion at the medial border of the scapula, and is involved in the retraction and elevation of the scapula?
Rhomboid major
What anatomical feature of the scapula forms the apex of the shoulder?
Acromion process
Which part of the scapula serves as an attachment site for muscles on its ventral surface?
Coracoid process
Which feature of the scapula provides passage for nerves and vessels?
Suprascapular notch
The glenohumeral joint is formed by the articulation of which two structures?
Glenoid cavity and humerus
Which part of the scapula is described as a concave anterior surface?
Subscapular fossa
Which bone articulates with the scapula at the acromion process?
Clavicle
The pectoral girdle consists of which two bones?
Scapula and clavicle
Which feature of the scapula provides a broad surface below the spine for muscle attachment?
Infraspinous fossa
What role does the antagonist muscle play in muscle movement?
It opposes the prime mover and prevents excessive movement
Which muscle is a neck flexor?
Sternocleidomastoid
Which of the following muscles is involved in the extension and lateral flexion of the vertebral column?
Erector spinae
Which muscle acts as a fixator, preventing movement of a bone?
Fixator
What is the primary action of the semispinalis thoracis muscle on the vertebral column?
Extension and contralateral rotation
Which muscle is responsible for flexion of the head?
Sternocleidomastoid
Which muscle group extends from the iliocostalis, longissimus, and spinalis?
Erector spinae
Which muscle aids the prime mover in muscle action?
Synergist
Which muscle is responsible for the abduction of the humerus?
Supraspinatus
What is the action of the levator scapulae muscle?
Elevation of the scapula
Which muscle is responsible for the medial rotation of the humerus?
Teres major
What is the insertion point of the pectoralis major muscle?
Humerus
Which muscle is responsible for the extension of the flexed arm?
Posterior fibres of the deltoid
What is the function of the rotator cuff muscles?
Stabilization of the glenohumeral joint
Which muscle is responsible for the depression of the shoulder?
Pectoralis minor
What is the origin of the latissimus dorsi muscle?
T6-12 spines, lower 3-4 ribs, iliac crest, thoracolumbar fascia
Which carpal bone is a sesamoid bone by age 9 to 12?
Pisiform
What type of joint is formed by the eight short bones in the wrist?
Synovial joints
Which bone is part of the distal row of carpal bones?
Trapezium
Which feature is characteristic of a Colles fracture?
Dorsal displacement
Which metacarpal is located proximal to the base of the little finger?
Metacarpal V
Which bone in the wrist has poor blood supply to its proximal part and is prone to bone necrosis?
Scaphoid
What is the name of the finger bone located closest to the palm?
Proximal phalanx
Which phalanges are present in the thumb?
Only proximal and distal
Which anatomical feature of the scapula provides a passage for nerve and vessels?
Suprascapular notch
What is the function of the glenoid cavity located on the lateral angle of the scapula?
To form the glenohumeral joint with the humerus
What anatomical feature does the coracoid process of the scapula serve?
It provides an attachment site for muscles
Which description best fits the supraspinous fossa of the scapula?
Surface above the spine
Which bone connects the upper limb to the trunk?
Clavicle
What is located on the postero-lateral aspect of the thorax and overlies ribs 2-7?
Scapula
Which structure articulates with the clavicle to form the only bony attachment of the scapula to the rest of the skeleton?
Acromion process
Where is the subscapular fossa of the scapula located?
Anterior surface
Which plexus is formed by the ventral rami of C5, C6, C7, C8, and T1?
Brachial plexus
What is the action of the triceps brachii muscle?
Extends shoulder and forearm
Which nerve supplies the muscles in the posterior compartment of the arm?
Radial nerve
Where does the short head of the biceps brachii originate?
Coracoid process of the scapula
What is the insertion point of the brachialis muscle?
Coronoid process of ulna
Which compartment of the arm is the coracobrachialis muscle located in?
Anterior (flexor) compartment
What action does the biceps brachii muscle NOT perform?
Extension of forearm
Which part of the humerus is the origin of the long head of the triceps brachii?
Infraglenoid tubercle
What is the primary function of the fixator muscle?
To prevent movement
Which muscle is classified as a neck flexor?
Sternocleidomastoid
What is the action of the triceps brachii muscle?
Extension of the forearm
Where do muscles that act on the head attach?
On the vertebral column, thoracic cage, and pectoral girdle
What is the function of the multifidus muscle?
Stabilization of adjacent vertebrae
What type of muscle attachment is associated with the movable point?
Insertion
Which muscle is classified as a neck extensor?
Semispinalis capitis
What is the action of the muscles that act on the vertebral column?
Extension and lateral flexion
This quiz covers the anatomy of the spinal cord and peripheral nervous system, including the trapezius and sternomastoid muscles, nerve cells, and grey and white matter.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
