Anatomy I Flashcards
Cranial-caudal and left-right axes define which of the following kinds of planes? A. coronal B. sagittal C. parasagittal D. transverse
A. coronal
A median-sagittal plane is described by which of the following two intersecting axes?
A. cranial caudal and the left-right axes
B. cranial caudal and the anterior-posterior axes
C. left-right and the anterior-posterior axes
D. none of the above
B. cranial caudal and the anterior-posterior axes
While standing in the anatomical position, the palms of the hand are supinated.
A. True
B. False
A. True
Which of the following organs would NOT be seen in a midsagittal section of the human body? A. heart B. lungs C. intestine D. transverse colon E. brain
B. lungs
The anterior-posterior axis serves for the axis of rotation for which of the following movement pairs? A. Flexion-extension B. Abduction-adduction C. Circumduction D. Pronation-supination
B. Abduction-adduction
The axis of rotation for flexion and extension is...? A. longitudinal or cranial-caudal B. left-right or transverse C. anterior-posterior D. none of the above
B. left-right or transverse
The epidermis can best be described as what class of epithelium? A. Stratified cuboidal B. Simple columnar C. Stratified squamous D. Transitional
C. Stratified squamous
Which of the following pairs of terms describes the epidermis? A. vascularized--innervated B. avascular--not innervated C. vasacularized--not innervated D. avascular--innervated
D. avascular–innervated
"Oil glands" (sebaceous glands) secreting their product directly into the hair follicle are classified with regard to their method of secretion by which of the following terms? A. Sudoriferous B. Eccrine C. Merocrine D. Holocrine E. Apocrine
D. Holocrine
White fibrous (dense regular) connective tissue is characterized by highly ordered bundles of collagen fibers separated by narrow compressed nuclei. This type of connective tissue would be most characteristic of which of the following anatomical structures?
A. The matrix of organs such as the spleen and lymph nodes
B. Tendons and ligaments
C. Tunica adventitia of blood vessels
D. Umbilical cord
B. Tendons and ligaments
Wharton’s jelly is an example of which category of connective tissue? A. Special B. Areolar C. Embryonic D. Adult E. Cartilaginous
C. Embryonic
Which of the following types of glycosaminoglycans is the largest of the GAGS, is the only GAG which lacks sulfate groups, and is present in nearly all connective tissues? A. Hyaluronic acid B. Heparin C. Chondroitin sulfate D. Keratan sulfate
A. Hyaluronic acid
Cells that initially lay down cartilage matrix are best identified as which of the following? A. Chondroclasts B. Osteoclasts C. Chondroblasts D. Chondrocytes E. Fibroblasts
C. Chondroblasts
Which of the following groups of cells are capable of breaking down bone matrix? A. Chondroclasts B. Osteoclasts C. Chondroblasts D. Chondrocytes E. Fibroblasts
B. Osteoclasts
Which of the following would NOT be classified as a long bone? A. femur B. humerus C. ulna D. calcaneus E. radius
D. calcaneus
The patella is an example of which of the following types of bones? A. short B. long C. irregular D. sesamoid
D. sesamoid
The joint between a tooth and its socket is best described by which of the following? A. condyloid B. suture C. fibrous D. syndesmosis E. both B and C
C. fibrous
Which of the following types of joints is an example of a diarthrosis joint? A. condyloid B. suture C. gomphosis D. syndesmosis E. both B and C
A. condyloid
In a diarthrosis, which component is more vascularized than the others? A. outer fibrous capsule B. articular cartilage C. ligaments D. synovial membrane
D. synovial membrane
During arm (humerus) abduction, the serratus anterior clamps the scapula against the thoracic wall, thereby providing a stable base for the movement of the glenohumeral joint. While engaged in this activity, the serratus anterior muscle would best
be described by which of the following terms?
A. Agonist
B. Antagonist
C. Fixator
D. Synergist
C. Fixator
Sequentially flexing, abducting, extending, and adducting your arm (brachium) in such a manner that the elbow describes a circular pattern is referred to by which of the following terms? A. Rotation B. Supination C. Circumduction D. Reposition E. Protraction
C. Circumduction
A muscle contraction that results in the lengthening of a muscle would best be described as which of the following? A. concentric B. eccentric C. isometric D. both A and B E. both B and C
B. eccentric
The connective tissue membrane that surrounds each fascicle of a skeletal muscle and physically supports blood vessels and nerves supplying the fascicles is referred to by which of the following terms? A. Perimysium B. Endomysium C. Epimysium D. Endotendineum
A. Perimysium
During the contraction of a skeletal muscle fiber, which band(s) DOES/DO shorten? A. The I band only B. The A band only C. The H band only D. Both the I and the A bands E. Both the I bands and the H bands
E. Both the I bands and the H bands
Which of the following statements is INCORRECT regarding fast twitch muscle fibers?
A. Fast-twitch fibers have fewer mitochondria than slow-switch fibers.
B. Fast-twitch fibers have less myoglobin than slow-switch fibers.
C. Fast-twitch fibers are more fatigue-resistant than slow-switch fibers.
D. Fast-twitch fibers primarily utilize glycolysis rather than oxidative phosphorylation.
E. Fast-twitch fibers have more ATPase than slow-switch fibers.
C. Fast-twitch fibers are more fatigue-resistant than slow-switch fibers.
Which muscle is contained within the superficial cervical fascia? A. Latissimus dorsi B. Platysma C. Pectoralis major D. Pectoralis minor E. Axillary muscle
B. Platysma
The axilla is generally described as a truncated pyramid with a quadrangular base. The anterior and posterior borders can be palpated and are created by muscles. The anterior border (anterior axillary fold) of the base of the axilla is formed by which of the following muscles or muscle groups? A. Pectoralis major B. Latissimus dorsi C. Latissimus dorsi and teres major D. Pectoralis minor E. Pectoralis major and pectoralis minor
A. Pectoralis major
The cranial end of the embryonic neural tube becomes
subdivided into five subdivisions, each of which forms specific parts of the adult brain. The thalamus is derived from which of the following subdivisions?
A. Telencephalon
B. Diencephalon
C. Mesencephalon
D. Metencephalon
E. Myelencephalon
B. Diencephalon
Which of the following terms refers to an aggregation of nerve cell bodies, dendrites, and synapses in the central nervous system? A. synapse B. ganglion C. nerve D. nucleus
D. nucleus
A bundle of axons in the central nervous system is referred to by which of the following terms? A. Nucleus B. Tract C. Ganglion D. Nerve E. Gray matter
B. Tract
Pre-ganglionic autonomic fibers are carried in the: A. White rami communicantes B. Gray rami communicantes C. Dorsal spinal roots D. Spinal nerves E. Both B and D
A. White rami communicantes
How many cervical vertebrae are present in the human vertebral column? A. five B. six C. seven D. eight E. nine
C. seven
How many pairs of cervical spinal nerves are present in the human? A. five B. six C. seven D. eight E. nine
D. eight
Which of the following are/is NOT found in the axillary sheath? A. Axillary artery B. Axillary vein C. Axillary lymph nodes D. Cords of brachial plexus
C. Axillary lymph nodes
The roots of C7 and T1 unite to form the: A. Middle trunk B. Lower trunk C. Upper trunk D. None of the above
D. None of the above
The lateral cord is formed by the union of the anterior divisions of which of the following trunks? A. middle trunk B. upper (superior) trunk C. lower (lower) trunk D. Both A and C E. Both A and B
E. Both A and B
The anterior compartment of the arm (brachium) contains the coracobrachialis, biceps brachii, and brachialis muscles. Which of the following nerves of the brachial plexus supplies the anterior brachium? A. Ulnar nerve B. Median nerve C. Radial nerve D. Musculocutaneous nerve E. Axillary nerve
D. Musculocutaneous nerve
This posterior compartment of the brachium (arm) contains the triceps complex. Which of the following nerves supplies the muscles of the posterior compartment of the brachium? A. Ulnar nerve B. Median nerve C. Radial nerve D. Musculocutaneous nerve E. Axillary nerve
C. Radial nerve
Which of the following nerves carries fibers only from spinal cord levels C8, and T1?
A. radial
B. ulnar
C. musculocutaneous
D. axillary
E. lateral cutaneous nerve of the forearm
B. ulnar
Which of the following nerves are terminal branches of the posterior cord of the brachial plexus? A. Median and ulnar B. Radial and ulnar C. Axillary and radial D. Long thoracic and medial E. Ulnar and axillary
C. Axillary and radial
The suprascapular nerve is a direct branch from which of the following subdivisions of the brachial plexus? A. Root of C5 B. Superior trunk C. Middle trunk D. Lateral cord E. Medial cord
B. Superior trunk
The sternal angle marks the union of the manubrium and sternebrae. It can be used to identify the location of which of the following landmarks? A. Clavicular-manubrium joint B. Site of the first ribs C. Site of the second ribs D. Site of the third ribs E. The apex of the heart
C. Site of the second ribs
The head of the radius articulates with which of the following landmarks?
A. Capitulum of the humerus
B. Scaphoid and lunate bones of the carpus
C. Trochlea of the humerus
D. Fovea of the trochlear process
A. Capitulum of the humerus
Which of the following descriptions best describes the
attachments of the interosseous membrane of the forearm?
A. Medial side of radius and medial side of ulna
B. Medial side of radius and lateral side of ulna
C. Lateral side of radius and lateral side of ulna
D. Lateral side of radius and medial side of ulna
B. Medial side of radius and lateral side of ulna
Origins of which of the following muscles lie superior and inferior to the spiral (radial) groove of the humerus? A. Biceps B. Brachialis C. Triceps D. Deltoid
C. Triceps
Which of the following landmarks on the scapula serves as the site of origin for the long head of the biceps brachii? A. Infraglenoid tubercle B. Supraglenoid tubercle C. Scapular tuberosity D. Coracoid process
B. Supraglenoid tubercle
Paresthesia over the shoulder and the proximal arm and
weakness of arm abduction may be indicative of injury to which of the following nerves?
A. Musculocutaneous
B. Radial
C. Axillary
D. Ulnar
E. Median
C. Axillary
Nerve supply to the latissimus dorsi is through which of the following nerves? A. lateral pectoral nerve B. medial pectoral nerve C. long thoracic nerve D. spinal accessory nerve E. thoracodorsal nerve.
E. thoracodorsal nerve.
Which of the following muscles is not part of the rotator cuff mechanism? A. Teres major B. Subscapularis C. Teres minor D. Supraspinatus E. Infraspinatus
A. Teres major
Which of the following serves as the insertion site of the
supraspinatus muscle?
A. Lesser tubercle
B. Inferior facet of the greater tubercle
C. Middle facet of the greater tubercle
D. Superior facet of the greater tubercle
E. Crest of the lesser tubercle
D. Superior facet of the greater tubercle
Which of the following muscles is most important in rotating the greater tubercle from under the acromion during full arm elevation? A. Teres minor B. Infraspinatus C. Supraspinatus D. Subscapularis E. Pectoralis minor
B. Infraspinatus
Which of the following muscles is necessary for the first few degrees of arm elevation? A. Infraspinatus B. Subscapularis C. Teres major D. Teres minor E. Supraspinatus
E. Supraspinatus
Improper use of axillary crutches (crutch palsy) may damage which of the following nerves? A. Radial B. Axillary C. Median D. Ulnar E. Musculocutaneous
A. Radial
Which of the following muscles is primarily responsible for the prevention of "winging" of the scapula? A. Pectoralis major B. Pectoralis minor C. Rhomboideus major D. Serratus anterior E. Serratus posterior superior
D. Serratus anterior
"Winging of the scapula" may be the result of injury to which of the following nerves? A. Thoracodorsal B. Axillary C. Long thoracic D. Thoracoacromial E. Suprascapular
C. Long thoracic
Which of the following arterial branches does NOT come off the third part (distal part) of the axillary artery? A. Subscapular artery B. Posterior circumflex humeral C. Anterior circumflex humeral D. Superior (supreme) thoracic artery
D. Superior (supreme) thoracic artery
The circumflex scapular artery is a branch of which of the following? A. Thyrocervical trunk B. Costocervical trunk C. Thoracoacromial trunk D. Subscapular artery E. None of the above
D. Subscapular artery
Which of the following nerves supplies the anterior brachium? A. Ulnar nerve B. Median nerve C. Radial nerve D. Musculocutaneous nerve E. Axillary nerve
D. Musculocutaneous nerve
Which of the following muscles is a single-joint muscle and would not be involved in active/passive insufficiency? A. Long head of the biceps B. Short head of the biceps C. Long head of the triceps D. Flexor digitorum superficialis E. Brachialis
E. Brachialis
Which of the following muscles attaches to the coracoid process? A. Short head of the biceps brachii B. Triceps lateralis; C. Pectoralis major; D. Long head of the biceps brachii; E. Subclavius.
A. Short head of the biceps brachii
Structures that are both medial to the biceps tendon and deep to the bicipital aponeurosis include which of the following?
A. Brachial artery only
B. Median nerve only
C. Median cubital vein only
D. Both the brachial artery and the median nerve
D. Both the brachial artery and the median nerve
In the arm, the posterior ulnar recurrent artery forms an anastomosis with which of the following? A. Superior radial collateral B. Inferior radial collateral C. Deep brachial D. Superior ulnar collateral E. Inferior ulnar collateral
D. Superior ulnar collateral
Which of the following represents the medial boundary of the cubital fossa? A. Brachioradialis muscle B. Pronator teres muscle C. Brachialis muscle D. Biceps tendon E. Pronator quadratus muscle
B. Pronator teres muscle
Which of the following nerves enters the forearm by passing between the two heads of the flexor carpi ulnaris? A. Ulnar B. Median C. Radial D. Musculocutaneous E. Axillary
A. Ulnar
Which of the following nerves penetrates the coracobrachialis muscle? A. Ulnar B. Median C. Radial D. Musculocutaneous E. Axillary
D. Musculocutaneous
Which of the following muscles does not receive innervation from the median nerve? A. Flexor carpi ulnaris B. Palmaris longus C. Pronator teres D. Flexor carpi radialis E. Flexor digitorum profundus
A. Flexor carpi ulnaris
Insertion of the extensor carpi radialis brevis is on the: A. Base of the second metacarpal B. Tubercle of the scaphoid C. Base of the third metacarpal D. Hamulus of the hamate
C. Base of the third metacarpal
Which of the following muscles of the anterior antebrachial compartment does not take its origin from the humerus? A. Palmaris longus B. Flexor digitorum profundus C. Pronator teres D. Flexor carpi radialis E. Flexor carpi ulnaris
B. Flexor digitorum profundus
Which of the following nerves innervate(s) the flexor digitorum profundus muscle?
A. Ulnar nerve
B. Median nerve
C. Both the ulnar nerve and the median nerve
D. Neither the ulnar nerve or the median nerve
C. Both the ulnar nerve and the median nerve
The anterior interosseous nerve is a branch of which of the following? A. Ulnar nerve B. Radial nerve C. Median nerve D. Posterior cord
C. Median nerve