Anatomy In-Lab Questions

• There are 4: 
• -supraspinatus
• - infraspinatus 
• -sibscapularis
• -teres minor

subscapularis because it is on the ventral surface of the scapula and we are looking from the posterior aspect.

• Supraspinatus
• - inn:suprascapular nerve
• -Action:Abduction of the arm at the shoulder 
•  think supra man how he flies the first thing he has to do is abduct his arms

• Infraspinatus
• -inn: suprascaular nerve
• -action: lateral rotation of the arm at the shoulder

• Tere minor:
• -inn: axillary nerve
• -action: Lateral rotation of the arm at the shoulder

• Subscapularis
• -inn:upper and loer subscapular nerve
• action:medially rotate arm at the shoulder 

Think "All me for the actions"

• innervation:lower subscapular 
• action:adducts and medially rotates the arm

• Imagine getting arrested for a major office. how do the cops get you. The adduct you hand and medially rotate them . remember that medial rotation is toward the back
• MAJOR offence

The conus medularis and between vertebrae L1-L2

• The denticulate ligament. it is 21 pairs of ligament that span from the foramen magnum to S2. it is an outgrowth of the pia mater. it has tooth like triangular projections that pierces through each layer of the meninges of the spine.
• Memngieal sheets. ensurea that the spinal cord is connected to the dura mater.

for the dorsal root ganglion you find sensory cell bodies. for the ventral horn there are motion cell bodies

• dorsal innervated the epaxial muscles of the body
• ventral innervates the hypaxial muscles of the body
• in terms of somatic motor innervation

• short spibous processes that are often bifurcate
• small bodies
• large vertebral foramina
• only vertebrae type with transverse foramamina;foramen in the transverse process
• superior and inferior articular facets are oriented horizontally

• long spinous processes that point inferiorly
• transvers costal facets for articulation with the rib
• demifacets on the superior and inferior aspect of the body/pedicle for rib articulation 
• superior and inferior aritcular process that are parralel to the coronal plane

• Large vertebral bodies
• broad spinous processes that project posteriorly 
• no transverse costal facetsor demifacets 
• superior and inferior articular processes parralell to sagital plane

through the intervertebral foramen.. This is created by two adjecent vertebrae. their inferior and superior notches and the intervertebral disc

• ARE you kidding you dont know?
• Adduct, medial rotate, and extend the arm at the shoulder

flexes, abduct, and extends

abduct arm

• extends head and neck, laterally flexes head and neck
• elevates and retracks shoulder and depresses at pectoral girdle

retracts and rotates shoulder