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Anatomy Lab 4
Decsriptions of anatomical structures studied in anatomy lab
121
Anatomy
Undergraduate 3
12/11/2013

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Term
Scapula
Definition
triangular bone located on the back
Term
Suprascapular Notch
Definition
Notch on the superior border of the scapula
Term
Vertebral Border
Definition
Border of the scapula closest to the spine, no socket
Term
Axillary Border
Definition
Border of the scapula farthest from the spine, socket
Term
Superior Angle
Definition
Point on the superior aspect of the scapula
Term
Inferior Angle
Definition
Point on the inferior aspect of the scapula
Term
Spine of the Scapula
Definition
Ridge on the posterior aspect of the scapula
Term
Acromion
Definition
Protrusion that is continuous with the spine of the scapula
Term
Supraspinous Fossa
Definition
Surface superior to the spine of the scapula
Term
Infrapinous Fossa
Definition
Surface inferior to the spine of the scapula
Term
Subscapular Fossa
Definition
Surface on the anterior side of the fossa, "articulates" with the back
Term
Glenoid Fossa
Definition
Socket for the humerus
Term
Supraglenoid Tubercle
Definition
Superior point on the glenoid fossa
Term
Infraglenoid Tubercle
Definition
Inferior point on the glenoid fossa
Term
Coracoid Process
Definition
Protuberance anterior to the acromion
Term
Humerus
Definition
Bone of the upper arm (brachium)
Term
Head of the humerus
Definition
Rounded ball on the superior aspect of the humerus
Term
Anatomical Neck of the Humerus
Definition
Just below the head of the humerus, not to be mistaken for the surgical neck, which sits lower
Term
Surgical Neck of the Humerus
Definition
Area where the head and tubercles join and begin to shrink, not to be mistaken for the anatomical neck, which sits higher
Term
Greater Tubercle of the Humerus
Definition
Large protuberance on the superior end of the humerus, lateral to the head
Term
Lesser Tubercle of the Humerus
Definition
Smaller protuberance on the superior end of the humerus
Term
Bicipital Groove
Definition
Groove between the lesser and greater tubercles of the humerus, allows for the tendon of the biceps brachii
Term
Deltoid Tuberosity
Definition
Lump abotu half way down the humerus
Term
Body of the Humerus
Definition
Long area between the proximal and distal ends
Term
Radial Groove
Definition
Large shallow groove on the anterior aspect of the humerus, runs laterally. Groove for the radial nerve
Term
Supracondylar Ridges
Definition
Ridges along the lateral and medial edges of the humerus on the distal end, meet the epicondyles
Term
Epicondyles of the Humerus
Definition
Bumps on the lateral, distal end of the humerus
Term
Capitulum
Definition
Rounded structure, next to the trochlea, articulates with the radius
Term
Trochlea
Definition
Hourglass shaped structure next to the capitulum, articulates with the ulna
Term
Coronoid Fossa
Definition
Surface above the trochlea on the anterior side
Term
Radial Fossa
Definition
Area above the capitulum on the anterior side
Term
Olecranon Fossa
Definition
Area above the trochlea on the posterior side
Term
Sternal End of the Clavicle
Definition
More fat than the other end
Term
Acromial End of the Clavicle
Definition
More flat than the other end
Term
Radius and Ulna
Definition
Bones of the forearm (antebrachium)
Term
Head of the Radius
Definition
Round structure on the proximal end of the radius
Term
Neck of the Radius
Definition
links the head to the body of the radius
Term
Radial Tuberosity
Definition
Bump on the body of the radius, on the ulnar side
Term
Styloid Process of the Radius
Definition
Lateral projecting bump on the distal end of the radius
Term
Ulnar Notch
Definition
Notch on the lateral side of the radius, articulates with the ulna
Term
Carpal Articular Surface
Definition
Flat surface on the distal end of the radius, articulates with the carpals
Term
Olecranon Process
Definition
Large protrusion on the posterior and proximal end of the ulna (elbow)
Term
Coronoid Process
Definition
Directly anterior to the olecranon process
Term
Radial Notch
Definition
Notch on the proximal end of the ulna that allows for articulation with the radius
Term
Ulnar Tuberosity
Definition
Bump on the anterior and proximal end of the body of the ulna
Term
Trochlear Notch
Definition
Notch that articulates with the trochlea, formed by the olecranon and coronoid processes
Term
Head of the Ulna
Definition
Small rounded structure on the distal end of the ulna
Term
Styloid Process of the Ulna
Definition
Lateral bump on the head of the ulna
Term
Carpal Bones
Definition
Wrist Bones, Proximal to distal and lateral to medial:
Scaphoid, Lunate, Triquetrum, Pisiform, Trapezium, Trapezoid, Capitate, Hamate
Term
Metacarpals
Definition
Long bones of the hand, between the carpals and the phalanges
Term
Phalanges
Definition
Bones of the fingers, digits 2-5 have 3 and digit 1 has 2
Term
Pectoralis Major Muscle
Definition
Large flat chest muscle
inn: Medial and Lateral Pectoral Nerves
Term
Deltoid Muscle
Definition
Divided into three heads:
Clavicular Head - most anterior
Acromial Head - intermediate
Spinal Head - Most posterior
inn: Axillary Nerve
Term
Serratus Anterior
Definition
Side of Thorax, looks like a saw
inn: Long Thoracic Nerve
Term
Subscapularis
Definition
On the Subscapular fossa
inn: Upper and Lower Subscapular Nerves
Term
Latissimus Dorsi
Definition
Side wings
inn: Thoracodorsal Nerve
Term
Teres Major
Definition
Larger and more inferior teres muscles, run from the scapula to the humerus
inn: Lower Subscapular Nerve
Term
Teres Minor
Definition
Small and more superior teres muscle, runs from the scapula to the humerus
inn: Axillary Nerve
Term
Trapezius
Definition
Large upper wings of the back
inn: Spinal Accessory CN XI
Term
Rhomboid Muscle
Definition
diamond shaped muscle in the back
inn: Dorsal Scapular Nerve
Term
Levator Scapulae
Definition
Runs from base of skull to the scapula
inn: Dorsal Scapular Nerve
Term
Supraspinatus
Definition
Located on the supraspinous fossa of the scapula
inn: Suprascapular Nerve
Term
Infraspinatus
Definition
Located on the infraspinous fossa on the scapula
inn:Suprascapular Nerve
Term
Medial Pectoral Nerve
Definition
Arises from the Medial Cord and innervates the Pectoralis major and minor muscles
Term
Lateral Pectoral Nerve
Definition
Arises from the Lateral Cord and innervates the pectoralis major and minor muscles
Term
Long Thoracic Nerve
Definition
Arises from the Brachial Plexus and innervates the seratus anterior muscle
Term
Thoracodorsal Nerve
Definition
Arises from the Posterior Cord, between the upper and lower Subscapular Nerves, and innervates the Latisimus Dorsi
Term
Upper Subscapular
Definition
Arises from the Posterior Cord above the Thoracodorsal and lower subscapular nerves and innervates the Subscapularis muscle
Term
Lower Subscapular
Definition
Arises from the Posterior Cord below the Upper Subscapular and Thoracodorsal nerves and innervates the Subscapularis and Teres Major muscles
Term
Spinal Accessory Cranial Nerve XI
Definition
Arises from the Brain and innervates the Trapezius
Term
Dorsal Scapular Nerve
Definition
Arises from Spinal Nerve C5 and innervates the Rhomboids and the Levator Scapulae
Term
Axillary Nerve
Definition
Arises from the split of the Posterior Cord and innervates the Deltoid and Teres Minor Muscles
Term
Suprascapular Nerve
Definition
Arises from the Superior Trunk and innervates the Supraspinatous and infraspinatous muscles
Term
Axillary Artery
Definition
Artery that runs from the first rib to Teres Major
Term
Thoracoacromial Artery
Definition
Proximal Branch off of the Axillary Artery
Term
Subscapular Artery
Definition
Distal branch off of the axillary artery
Term
Brachial Artery
Definition
Past the Teres Major muscle, the Axillary Artery continues as this
Term
Deep Brachial Artery
Definition
Only major branch off of the brachial artery
Term
Axillary Vein
Definition
Vein that follows the Axillary artery
Term
Basilic Vein
Definition
Vein in the brachium that is more medial
Term
Cephalic Vein
Definition
Vein in the brachium that is more lateral
Term
Median Cubital Vein
Definition
Connecting vein between the basilic and cephalic veins, crosses elbow joint
Term
Lateral Cord
Definition
Arises from the Superior and Middle Trunks, Gives rise to the lateral pectoral nerve and becomes the lateral root of the median nerve and the musculocutaneous nerve
Term
Medial Cord
Definition
Arises from the Inferior Trunk, gives rise to the medial pectoral nerve, and becomes the medial root of the median nerve and ulnar nerve
Term
Posterior Cord
Definition
Arises from branches of Superior, middle, and inferior trunks, gives rise to the upper subscapular nerve, thoracodorsal nerve, and the lower subscapular nerve, and becomes the axillary nerve and the radial nerve
Term
Median Nerve
Definition
Formed from branches of the medial and lateral cords, the medial and lateral roots of the median nerve
Term
Biceps Brachii
Definition
Two headed muscle located superficially and anterior. innervated by the musculocutaneous nerve. Long head appears shorter but travels theough the bicipital groove farther up into the shoulder than the short head
Term
Coracobrachialis
Definition
Shares the same proximal attachment with the short head of the biceps brachii but its distal attachment is farther up the humerus
Term
Brachialis
Definition
Crosses the elbow joint, attaches part way up the humerus
Term
Triceps Brachii
Definition
Three headed muscle innervated by the radial nerve. Long head crosses the shoulder joint and is medial, the lateral head and medial heads only cross the elbow joint. The lateral head is located superficially and laterally and the medial head is located deep to both of the other bellies
Term
Pronator Teres
Definition
proximal forearm, crosses from medial epicondyle of the humerus to the radius, running laterally
Term
Flexor Carpis Radialis
Definition
Attaches to the medial epicondyle of the humerus, runs down to the lateral carpal bones
Term
Palmaris Longus
Definition
Muscle that may or may not be present in an individual, long tendon running to the palmar aponeurosis
Term
Flexor Carpi Ulnaris
Definition
Attaches to the medial epicondyle of the humerus and distally to the carpals on the ulnar side
Term
Flexor Digitorum Superficialis
Definition
Most superficial of the digital flexors
Term
Flexor Digitorum Profundus
Definition
Deep to the flexor digitorum superficialis
Term
Flexor Pollicis Longus
Definition
On the anterior and lateral aspect of the arm and deep, attaches to the distal phalanx of digit 1
Term
Pronator Quadratus
Definition
Square muscle in the distal forearm, between the radius and ulna
Term
Deep Palmar Arch
Definition
Connects the radial and ulnar arteries in the hand, deep and more proximal thaan the superficial arch
Term
Superficial Palmar Arch
Definition
Connects the radial and ulnar arteries in the hand, superficial and more distal than the deep arch
Term
Abductor Pollicis Brevis
Definition
Hand intrinsic, most lateral and superficial of the thenar group
Term
Flexor Pollicis Brevis
Definition
Hand intrinsic, located more medial than the abductor pollicis brevis
Term
Opponens Pollicis
Definition
Deep to the Abductor Pollicis Brevis and Flexor Pollicis Brevis
Term
Adductor Pollicis
Definition
Transverse running muscle between the thumb and the rest of the hand
Term
Abductor Digiti Minimi
Definition
Most laterally placed muscle on the little finger side
Term
Flexor Digiti Minimi
Definition
More medial than abdutir digiti minimi
Term
Opponens Digiti Minimi
Definition
Transverse runnning fibers that connect the little finger to the rest of the hand
Term
Lumbricals
Definition
Look like small worms on the palmar side of the hand
Term
Palmar Interossei Muscles
Definition
Deep to the lumbricals and the deep palmar arch
Term
Posterior Interossei Muscles
Definition
BAck of hand, between the metacarpals, first is large web area between the thumb and the index finger
Term
Brachioradialis
Definition
superficial and lateral muscle that crosses the elbow joint
Term
Extensor Carpi Radialis Longus
Definition
Extensor on the radial side, has a long tendon
Term
Extensor Carpi Radialis Brevis
Definition
Extensor on the radial side, has a shorter tendon and longer muscle belly
Term
Extensor Digitorum
Definition
Superficial Extensor which runs to digits 2-5
Term
Extensor Digiti Minimi
Definition
Lateral side of extensor digitorum, runs to little finger and then muscle belly becomes continuous with extensor digitorum
Term
Extensor Carpi Ulnaris
Definition
Medial to the extensor digitorum, attaches to the medial side
Term
Supinator
Definition
Located around the radius, makes a V with the pronator teres
Term
Extensor Indicis
Definition
Deep to the extensor digitorum, tendon runs to the index finger
Term
Extensor Pollicis Longus
Definition
Located next to Extensor Indicis, runs to the distal phalanx of the thumb
Term
Extensor Pollicis Brevis
Definition
Lateral to Extensor Pollicis Longus, runs to the proximal phalanx of the thumb
Term
Abductor Pollicis Brevis
Definition
Most lateral of the deep posterior forearm muscles, inserts on the first metacarpal
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