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exam 2
exam 2
10
Anatomy
Professional
10/22/2010

Additional Anatomy Flashcards

 


 

Cards

Term
lissauer's tract
Definition
divergence of nocioceptpr axons to higher and lower spinal cord segments,important for activating neural cicuits for reflex movement away from a stimulus
Term
2 main spinal cord sensory pathways
Definition
spinothalamic tract- carries info regarding pain, temperature, and crude touch
posterior column/medial lemniscus pathway carries info about fine touch, temp, and crude touch
Term
substantia gelatinosa
Definition
axon terminals and dendrites, nociception processing area of posterior horn contains elements of endogenous opiate pain-suppression system that involves the hypothalmus and part of the brainstem reticular formation
Term
fasciculus gracilis
Definition
medial half of posterior column, lower limb primary afferent(1st order) axons carrying fine touch, conscious proprioception and vibration info to posterior column nucleus (nucleus gracilis) of caudal medulla
Term
fasiciculus cuneatus
Definition
lateral half of posterior column, upper limb primary afferent first order axons carrying fine touch, conscious propprioception and vibration info to posterior column of nucleus(nucleus cuneatus) of caudal medulla
Term
spinothalmic tract
Definition
second order axons carrying pain, temp, and crude touch information
Term
ventral white commissure
Definition
mid-line crossing point of many different axons, some commissural but others are decussations (axons projecting from the dorsal horn into the spinothalmic tract)
Term
contents of the inquinal canal
Definition
spermatic cord, round ligament of the uterus, ilioinguinal nerve
Term
contents of the spermatic cord
Definition
vas deferens, testicular artery, pampiniform plexus of veins, visceral sensory and motor nerves running with the blood vessels
Term
differences between the tunica dartos and cremaster muscle
Definition
tunica dartos is smooth muscle, sympathetic innervation and for temperature control
cremaster is skeletal muscle, somatic innnervation, and has a protective reflex of pulling the scrotum and testis up on the side stroked innervation is L1-L2
nerve for both is the gentifemoral nerve anbd ilioquinal nerve
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