Intro + Muscle anatomy

Question 1

Muscle Stabilizers

Answer 1

Core (Transverse Abs)

Joints

Question 2

Whats is the structure of a skeletal muscle….

Answer 2

Muscle 
Fascicles
Individual MF 
Myofibrils 
Actin & Myosin

Question 3

Neuromuscular junction consists off..

Answer 3

Axon terminals
motor end plates
Schwann cell sheaths

Question 4

The Motor end plate contains..

Answer 4

High concentrations of ACh receptors

Question 5

What is stores in the sarcoplasmic reticulum

Answer 5

CA2+ (released on myofibrils on arrival of nerve impulse down t-tubule

Question 6

How many actin filaments encircle the myosin..
A) 6
B)10 
C)2
D)3

Answer 6

A)6

Question 7

When CA2+ levels increase in the cytosol what does CA2+ bind too?

Answer 7

Troponin

Question 8

What is the role of troponin CA2+..

Answer 8

Pulls tropomyosin away from the G-actin binding sites.

Question 9

Series elastic components include….

Answer 9

Tendons
X-bridges
Structural proteins

Question 10

Parallel elastic component

Answer 10

Muscle Fascia

Question 11

maximal power will decrease due too..

Answer 11

Reduction in max force at faster speeds

Question 12

At any given velocity greater power occurs in FT fibres the slow. TRUE OR FALSE

Answer 12

TRUE

Question 13

Maximal force per X sectional area is ..& higher in FT (11a/11x) compared to Slow (type 1) 
A) 10-20%
B)30-40% 
C)1-2% 
D)50-54%

Answer 13

A) 10-20%

Question 14

Fast fibres contain more cross-bridges pre cross sectional area compared to ST.. TRUE OR FALSE

Answer 14

TRUE