MSK Anatomy Practical

Body (anterior to spinal cord)

What part of the vertebra is this?

Pedicle (anterior part of neural arch)

What part of the vertebra is this?

Lamina (posterior part of neural arch)

What part of the vertebra is this?

Vertebral Foramen

What part of the vertebra is this?

Intervertebral Foramen (hole for spinal nerve)

What part of the vertebra is this?

Superior Vertebral Notch

What part of the vertebra is this?

Inferior Vertebral Notch

What part of the vertebra is this?

Transverse Process (in cervical vertebra)

What part of the vertebra is this?

Transverse Process (in thoracic vertebra)

What part of the vertebra is this?

Transverse Process (in lumbar vertebra)

What part of the vertebra is this?

Spinous Process (in cervical vertebra)

What part of the vertebra is this?

Spinous Process (in thoracic vertebra)

What part of the vertebra is this?

Spinous Process (in lumbar vertebra)

What part of the vertebra is this?

Superior Articular Process (part of facet joint)

What part of the vertebra is this?

Inferior Articular Process (part of facet joint)

What part of the vertebra is this?

Pars Interarticularis

What part of the vertebra is this?

Ucinate Process

What part of the cervical vertebra is this?

Anterior Arch

Name this specific part of the atlas (C1).

Articular Facet for Dens

Name this specific part of the atlas (C1).

Posterior Arch

Name this specific part of the atlas (C1).

Transverse Foramen

Name this specific part of the atlas (C1).

Superior Articular Facet (head nodding motion, located on lateral masses, articulates with occipital condyles)

Name this specific part of the atlas (C1).

Inferior Articular Facet (head shaking motion, located on lateral masses, articulates with superior articular facets of C2)

Name this specific part of the atlas (C1).

Dens (Odontoid, head shaking motion)

Name this specific part of the axis (C2)

Anterior Longitudinal Ligament

Name this ligament (anterior to vertebral bodies)

Posterior Longitudinal Ligament

Name this ligament (posterior to vertebral bodies, anterior to spinal cord)

Ligamentum Flavum

Name this ligament (posterior to spinal cord)

Interspinous Ligament

Name this ligament (in between spinous process of vertebral column)

Supraspinous Ligament

Name this ligament (posterior to interspinous ligament)

Trapezius

Innervated by CN XI (and elevates, depresses, retracts, and rotates the scapula; rotates the arm)

Latissimus Dorsi

Innervated by thoracodorsal nerve (and extends, adducts, and medially rotates the arm; draws the shoulder downward and backward)

Levator Scapulae

Innervated by dorsal scapular nerve (and elevates scapula)

Rhomboid Major

Innervated by dorsal scapular nerve (and adducts/retracts scapula)

Rhomboid Minor

Innervated by dorsal scapular nerve (and adducts/retracts scapula)

Serratus Posterior Superior

Elevates ribs, located deep to rhomboids (paper thin)

Serratus Posterior Inferior

Depresses ribs, located deep to latissimus dorsi (paper thin)

Splenius Capitus (oriented diagonally)

Extends head

Splenius Cervicis (oriented diagonally)

Extend neck/laterally flex and rotate head to same side

Semispinalis Capitis (oriented vertically)

Extends head, bends head to one side, or rotates head

Iliocostalis

Most lateral of erector spinae

Longissimus

Middle of erector spinae

Spinalis

Most medial of erector spinae

Thoracolumbar Fascia

Looks like white connective tissue attached to latissmus dorsi close to midline in lumbar region

Superior Angle (attachment site to levator scapulae)

Name this specific part of the scapula.

Inferior Angle

Name this specific part of the scapula.

Medial Border (attachment site to rhomboids)

Name this specific part of the scapula.

Lateral Border

Name this specific part of the scapula.

Glenoid Fossa

Site of glenohumeral Joint (scapula articlates w/ humerus)

Supraglenoid Tubercle

Proximal attachment of long head of biceps brachii

Infraglenoid Tubercle

Proximal attachment of long head of triceps brachii

Spine of Scapula

Name this specific part of the scapula.

Supraspinous Fossa

Origin of supraspinatus

Infraspinous Fossa

Origin of infraspinatus

Subscapular Fossa

Origin of subscapularis

Coracoid Process

Proximal attachment for pectoralis minor, coracobrachialis, & short head of biceps brachii

Acromion

Scapular Notch

Space for suprascapular nerve

Supraspinatus

Innervated by suprascapular nerve (and abducts shoulder)

Infraspinatus

Innervated by suprascapular nerve (and shoulder lateral rotation)

Teres Minor

Innervated by axillary nerve (and shoulder lateral rotation)

Teres Major

Innervated by lower subscapular nerve (and extends, adducts, medially rotates arm)

Deltoid

Innervated by axillary nerve (and abducts shoulder)

Axillary Nerve

Innervates deltoid and teres minor, travels through quadrangular space w/ posterior circumflex humeral artery

Posterior Circumflex Humeral Artery (branch off third part of axillary artery)

Travels through quadrangular space w/ axillary nerve

Suprascapular Artery (branch off thyrocervical trunk of subclavian artery)

Travels over transverse scapular ligament

Suprascapular Nerve

Travels under transverse scapular ligament, innervates supraspinatus and infraspinatus

Transverse Scapular Ligament

Name the ligament

Circumflex Scapular Artery (branch off subscapular artery)

Travels in triangular space

Quandrangular Space

Name this Space

Bounderies:

Lat. Border: lat. head of triceps

Med. Border: long head of triceps

Sup. Border: teres minor

Inf. Border: teres major

Contents:

1. axillary nerve

2. posterior circumflex humeral (PCH) a.

Triangular Space

Name this Space

Bounded by teres minor (medially), teres major (inferiorly) and long head of triceps brachii (laterally); contains circumflex scapular a.

Profunda Brachii Artery (branch off brachial artery, which is distal continuation of axillary artery)

Travels through triangular interval, and travels along with radial nerve through radial/spiral groove

Radial Nerve

Travels along with profunda brachii artery through radial/spiral groove, innervates posterior arm (triceps)

Triceps Brachii

Innervated by radial nerve, functions to extend elbow, and contains lateral, long, and medial heads

Lateral Head of Triceps

Name the head of the triceps

Long Head of Triceps

Name the head of the triceps

Medial Head of Triceps

Name the head of the triceps

Head (articulates with glenoid cavity of scapula)

What part of the humerus is this?

Anatomical neck

What part of the humerus is this?

Surgical neck (axillary nerve, PHCA wrap together around this)

What part of the humerus is this?

Deltoid tuberosity (distal attachment site for deltoids)

What part of the humerus is this?

Radial groove (radial nerve & profunda brachii artery travel together here)

What part of the humerus is this?

Greater tubercle (attachment for supraspinatus, infraspinatus, & teres minor)

What part of the humerus is this?

Lesser tubercle (attachment for subscapularis)

What part of the humerus is this?

Intertubercular groove

-tendon of biceps long head passes through here

Mnemonic: Lt b/w 2 majors (site of insertion of latissimus dorsi, and while pec major attaches to lateral lip and teres major attaches to medial lip of this structure)

What part of the humerus is this?

Capitulum (articulates with head of radius)

What part of the humerus is this?

Trochlea (articulates with semilunar notch of ulna)

What part of the humerus is this?

Medial epicondyle

What part of the humerus is this?

Lateral epicondyle

What part of the humerus is this?

Olecranon fossa

What part of the humerus is this?

Head

What part of the radius is this?

Neck

What part of the radius is this?

Dorsal tubercle

What part of the radius is this?

Styloid process

What part of the radius is this?

Coronoid process

What part of the ulna is this?

Olecranon

What part of the ulna is this?

Ulnar tuberosity

What part of the ulna is this?

Styloid process

What part of the ulna is this?

Pectoralis major

Innervated by BOTH medial & lateral pectoral nerves (and adducts and flexes humerus)

Pectoralis minor

Innervated by ONLY medial pectoral nerve (and protracts and depresses scapula) (originates at coracoid process of scapula, inserts into ribs 3-5)

Subscapularis

Medially rotates shoulder