Physiology of Muscular System

Organize these options into the right categories

Groups:

(a) Aerobic

,

(b) Anaerobic

• fast

• oxygen

• atp @ 36

• lactic fermentation

• slow

• atp @ 2

• cytoplasm and mitochondria

• just cytoplasm

• no oxygen

Tags

NGSS.MS-LS1-7

muscle contractions

Groups:

(a) Isometirc

,

(b) Isotonic

,

(c) Aerobic

• walking and chewing

• does no increase much in size

• the muscle shortens and the body part moves

• walking and running

• makes stronger more flexible muscles

• weight lifting

• muscle do not shorten

define origin

• The attachment of a muscle to a moveable bone

• Where the muscle is attached to an immovable or only slightly movable bone

• Where the end meets the beginning

Define Insertion

• The attachment of a muscle to a moveable bone

• • Where the muscle is attached to an immovable or only slightly movable bone 

• Where the bone meets the skin and makes a mark

A                               is one neuron and all of the skeletal muscle cells it causes to contract.

One motor neuron may branch to stimulate hundreds of   

                             .

The specific neurotransmitter that stimulates skeletal muscle fibers is   .

• Muscle Fiber

• Neurotransmitter

• Synaptic Cleft

• Acetylcholine

Match the following

• The movement that increases the distance

•  

  Extension

   

• Moving a limb away from the body

•  

  Abduction

• The movement that brings two bones close

•  

  Adduction

• The extension of a joint >180 degrees

•  

  Hyperextension

• Moving a limb toward the body 

• Flexion

Match the following

• Pointing toes away from shin

•  

  Pronation

• Tip of the fingers touch the tip of thum

•  

  Supination

• Forearm rotates and palm faces posterior

•  

  Opposition

• The movement- plan and forearm face ante

•  

  Dorsiflexion

• lifting foot to be superior to shin

•  

  Plantar Flexion

   

Label

b

c

d

a

Neuromuscular Junction

Axon of Motor Junction

Muscle Fiber

Myofibrils

Tags

NGSS.MS-LS1-3