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Jason's Renal Block > Back Bones/Muscles > Flashcards

Flashcards in Back Bones/Muscles Deck (12):
1

posterior rami innervate what 3 things?

facet joints
deep back muscles
overlying skin

2

When are erectors turned off?

full flexion

3

what is an angiosome?

vascular territory

4

2 types of back pain:

neurogenic:
compressive: discs, stenosis

5

why is spine common place for metastasis?

veins that drain have no valves

6

which muscles are good at long sustained contractions without fatigue?

smooth muscle

7

shape of smooth muscle?

spindle shaped

8

2 kinds of striated

skeletal-network
cardiac - giant cells

9

where are the nuclei in skeletal vs. cardiac vs. smooth?

peripheral
central
central

10

how to get Ca2+ into muscle cells?

via T-tubules in sarcoplasmic reticulum

11

what joins cardiac cells together?

intercalated discs
fascia adherens for myofibrils
desmosomes to reinforce

12

Gap junctions in cardiac cells are oriented?

longitudinally