Muscle Movement and Nervous System

Muscle Movement of the Face

100

Frontal Belly of Occipitofrontalis

Raises Eyebrows and is innervated by the facial never (CN VII)

200

Corrugator Supercilii

Pulls eyebrows medially and inferiorly and is innervated by the facial nerve CN VII

300

Orbicularis Oculi

closes eye and is innervated by the facial nerve CN VII

400

Orbicularis Oris

Closes mouth and is innervated by facial nerve CN VII

500

all these:

Mentalis

Platysma

Buccinator

Mentalis pouts

platysma tenses neck

buccinator compresses cheek

Mastication Muscle Movement

100

Masseter

Prime mover of jaw closure (elevates the mandible) and is innervated by the trigeminal nerve CN V

200

Temporalis

Jaw closure (elevates the mandible) and inntervated by the trigeminal nerve CN V

300

Medial and lateral pterygoid

grinding / innervated by the trigeminal nerve CN V

400

Buccinator

keeps food on teeth / innervated by facial nerve CN VII

500

What are the 4 rotator cuff muscles

Supraspinatus

Infraspinatus

Teres Minor

Subscapularis

Tongue and Neck Muscle Movement

100

Geniglossus

Hyoglossus

Styloglossus

 all 3 are responsible for moving the tongue and is innervated by the hypoglossal nerve CN XII

200

Hyoid muscle

speech, swallowing, and maintain open airway.  

300

Sternocleidomastoid

Bilateral contraction: flexes neck and extends head / innervated by the accessory nerve CN XI

400

scalenes

elevates the first 2 ribs (inspiration compensation)

500

splenius

neck extension and hyperextension

Breathing and large muscles of the back Movement

100

Diaphram

prime mover of inspiration AKA inhalation innervated by phrenic nerve.

200

External intercostals

internal intercostals

external intercostals aid in inspiration (inhalation)

internal intercostals aid in forcing air out of the lungs

300

Quadratus Lumborum

Laterally flexes vertebral column

400

name the muscles of the erector spinae (all of which perform spine, back, trunk extension and posture)

Iliocostalis

Longissimus

Spinalis

500

What does Rectus, Transverse and Oblique each mean for muscle orientation to the midline of the body? 

Rectus means parallel with the midline

Transverse means perpendicular to the midline

oblique means diagonal to midline 

nervous system (don't get nervous)

100

Name the 3 main components of a neuron, then name the 3 components of 1 of the 3 components of the neuron. 

Axon, axon hillock, axon terminal, myelin sheath

Soma or nucleus

dendrites

200

name the 3 types of nerve impulses

1. GP

2. AP

3. Synapses

300

What are the 3 things the nervous system does?

1. Sensory from receptors

2. Integration or processing in the CNS

3. Motor or respond to stimuli via effectors

400

What are the two systems of the Motor Division

1. Somatic nervous system (voluntary muscle control to skeletal muscle)

2. Autonomic nervous system (involuntary muscle, cardiac, smooth, and glands)

500

What are the 2 divisions of the PNS

1. Sensory (afferent) Division- receives signals and sends them to the cranial and spinal nerves

2. Motor (efferent) Division - sends instructions to muscles and glands to do something.