A&P I - Practical 2 (Bones/Innervations/Etc.)
The ulna is ________ to the radius.
medial
The posterior division of the brachial plexus is formed from...
All three trunks
Costal groove
Allows for the deposition of the intercostal... Nerve Vein Artery Located interiorly
Lesser tubercle of humerus
Anterior
The musculocutaneous nerve innervates the...
Anterior compartment of the arm (Ex: Biceps brachii, brachialis)
Coronoid fossa
Anterior depression of distal humerus
The two divisions of the brachial plexus are the...
Anterior division Posterior division
All ligaments of the vertebral column limit flexion, except for _____________ ________________ _______________, that limits extension/hyperextension
Anterior longitudinal ligament
Transverse costal facets
Articulate with tubercles of ribs (T1-12 with ribs 1-12 respectively)
Inferior costal facets
Articulates head of rib with next lowest vertebrae (Ex: T6 with rib 7)
Superior costal facets
Articulates head of rib with same level vertebrae (Ex: T7 with rib 7)
Auricular surface of sacrum
Articulates with auricular surface of ilium
Auricular surface of ilium
Articulates with auricular surface of sacrum Forms sacroiliac joint
Head of radius
Articulates with capitulum of humerus
Articular tubercle of rib
Articulates with costal facet of transverse vertebrae
Radial notch
Articulates with head of radius
Ulnar notch
Articulates with head of ulna
Head of rib
Articulates with the costal facet of a thoracic vertebral body.
Lateral horn
Autonomic cell bodies
The posterior cord gives rise to which nerves?
Axillary Radial
The ulnar nerve innervates the...
Medial side of anterior compartments of the forearm
Sternal body
Middle of sternum
C7 alone forms the
Middle trunk
Ventral root
Motor axons (Output)
Ventral horn
Motor cell bodies
The lateral cord gives rise to which nerves?
Musculocutaneous Median
Neck of rib
Between head and tubercle
Sternal angle
Between manubrium and body of sternum (approx. at rib 2)
Metacarpophalangeal joint (MP)
Between metacarpal and proximal phalanx
Distal interphalangeal joint (DIP)
Between middle and distal phalanx
Proximal interphalangeal joint (PIP)
Between proximal and middle phalanx
Elements of cervical vertebrae
C1 (Atlas) & C2 (Axis) are different Small body Bifid spinous process Transverse foramen
The roots of the brachial plexus are associated with what nerves?
C5-T1
Sacral canal
Central canal transmitting the dorsal and ventral roots of spinal nerves S1 to S6 and the coccygeal spinal nerve
Lordosis & Kyphosis
Cervical lordosis Thoracic kyphosis Lumbar lordosis
Acromioclavicular ligament
Connects acromion and clavicle
Anterior Longitudinal Ligament (ALL)
Connects anterior surfaces of vertebrae
Coracoacromial ligament
Connects coracoid process to acromion
Coracoclavicular ligament
Connects coracoid process to clavicle
Annular ligament
Connects head of radius to ulna
Ligamentum flavum
Connects laminae of adjacent vertebrae
Posterior Longitudinal Ligament (PLL)
Connects posterior surfaces of vertebrae
Interspinous ligament
Connects the spinous processes of adjacent vertebrae
Supraspinous ligament
Connects tips of spinous processes together
Sympathetic trunk
Contains autonomic nerve fibers
C2 (Axis)
Dens fits into anterior arch of C1 Atlantoaxial joint
Posterior (dorsal) & anterior (ventral) sacral foramen
Emergence of dorsal & ventral rami of spinal nerves
The sacrum and coccyx have _________ vertebrae.
Fused
Medial sacral crest
Fused spinous processes of sacral vertebrae
Parts of the radius
Head Radial tuberosity Styloid process Ulnar notch
Os coxae
Hip bone
Acetabelum
Hip socket
Jugular notch of sternum
Indentation at the top of the manubrium
C8 & T1 merge to form the
Inferior trunk
The cords in the brachial plexus are...
Lateral Posterior Middle
The axillary nerve innervates the...
Lateral compartment of abducting arm (Ex: Deltoid & teres minor)
The median nerve innervates the...
Lateral side of anterior compartment of forearm
Lamina
Layer, sheet of bone
Pubic symphysis
Made of fibrocartilage
Intervertebral disc
Mass of fibrocartilage between adjacent vertebrae
The median nerve comes from which two cords?
Medial & lateral
C1 (Atlas)
No body Anterior arch that articulates with dens of C2 Occipito-atlanto joint
Parts of ulna
Olecranon Coronoid process Trochlear notch Radial notch Styloid process
Intervertebral foramen
Opening located between adjacent vertebrae for exit of a spinal nerve
Acromion
Outward extension of the shoulder blade forming the point of the shoulder
Metacarpal V is the...
Pinky
Greater tubercle of humerus
Posterior
Parts of the brachial plexus
Roots Trunks Divisions Cords Branches
Carpal bones
Scaphoid Lunate Triquetrum Pisiform Hamate Capitate Trapezium Trapezoid
Dorsal root
Sensory axons (Input)
Dorsal horn
Sensory cell bodies
Dorsal root ganglion
Sensory cell bodies
The radial nerve innervates the...
Posterior compartment of the arm & forearm (Ex: Triceps brachii)
Olecranon fossa
Posterior depression of distal humerus
Spine of scapula
Posterior ridge
Phalanges
Proximal phalanx Middle phalanx Distal phalanx
Is the thumb on the radial or ulnar side? The pinky?
Radial Ulnar
Intertubercular suclcus
Region between greater and lesser tubercles
Flexor retinaculum
Roof of carpal tunnel
Body of rib
Shaft
Spinous process
Sharp, slender projection Projects out medially
Scapula
Shoulder blade
Superior articular process
Site of articulation with inferior articular process of the next highest vertebra
Inferior articular process
Site of articulation with superior articular process of the next lowest vertebra
Mnemonic for remembering carpal bones
So Long To Pinky Here Comes The Thumb Starts at proximal row on thumb side and goes around
Bifid spinous process
Splits into 2
Radial collateral ligament
Stabilizes the lateral side of the elbow
Ulnar collateral ligament
Stabilizes the medial side of the elbow
C5 & C6 merge to form
Superior trunk
Pedicle
Supporting column
Paravertebral ganglion
Sympathetic chain of neurons that run parallel to the spinal cord.
Coccygeal vertebrae
Tailbone
Anterior division of the brachial plexus stems from... (2)
The convergence of the superior & middle trunks The inferior trunk
Metacarpal I is the...
Thumb
Elements of thoracic vertebrae
Transverse costal facets Superior costal facets Inferior costal facets
Angle of rib
Turn of rib
Transverse processes
Two lateral projections from the vertebral arch
The medial cord gives rise to which nerves?
Ulnar Median
Humerus
Upper arm bone
Manubrium
Upper portion of sternum
The roots of the brachial plexus stem from the...
Ventral rami
Transverse foramen
Vertebral artery and vein pass through here
Vertebral body
Weight bearing
Carpal
Wrist
