Joint types
What kind of joint is the humeroulnar joint?
Hinge joint
What is the name for an aggregation of dendrites and nerve cell bodies in the PNS?
Ganglion
Which muscle type(s) produce voluntary movement? Involuntary?
voluntary: skeletal muscle.
Involuntary: smooth muscle and cardiac muscle
Name the three cords of the brachial plexus
lateral, posterior, medial
Is the scapula part of the axial or appendicular skeletal division?
Appendicular
What kind of joint are the proximal and distal radioulnar joints?
pivot joint
What kind of “information” is carried along afferent pathways?
Sensory
What is a motor unit?
1 motor neuron and all of the muscle fibers it controls
Name the roots of the brachial plexus
C5, C6, C7, C8, T1
Name the bones in the proximal row of carpal bones from lateral to medial
scaphoid, lunate, triquetrum, pisiform
What kind of joint is the Sternoclavicular joint?
What is the term for a bundle of fibers in the CNS?
tract
Which muscle fiber types (i.e. slow twitch, fast twitch) are red? Which are white?
Bonus: What causes the difference in muscle fiber color?
Red: slow twitch (type I)
White: fast twitch fatigue-resistant fibers (type IIa) and fast twitch glycolytic fibers (type IIb)
Bonus: amount of myoglobin
The long thoracic nerve innervates what muscle(s)?
serratus anterior
What is the blood supply for pectoralis major?
Thoracoacromial artery
What type of joint is the radiocarpal joint?
ellipsoid
Within a nerve, what is the name for a bundle of axons/nerve fibers?
Fascicle
Which muscle types are striated?
skeletal muscle and cardiac muscle
Name the nerves that come off of the posterior cord of the brachial plexus
Lower Subscapular, thoracodorsal, upper Subscapular
What is the action(s) of the rhomboid major?
scapula elevation, retraction, and downward rotation
What kind of joint is the FIRST (I) carpometacarpal joint? (aka trapeziometacarpal joint)
saddle joint
Within a nerve, what is the name of the wrapping that surrounds a fascicle?
Perineurium
What is a myofiber?
A bundle of myofibrils. Aka a muscle cell
What muscle(s) is innervated by the dorsal scapular nerve?
levator scapulae, rhomboid major, rhomboid minor
What is the innervation of the Brachioradialis?
radial nerve