Muscles of the Face

Question 1

What type of muscle tissue ate facial muscles?

Answer 1

They are voluntary / striated muscle

We voluntarily control our facial & body muscles to move them.

Question 2

How to muscles work?

Answer 2

Muscles are attached to bone (or skin in the case of facial muscles).
They contract (shorten) and relax (return to their original length) to facilitate movement.

Question 3

Level 3 EKU:

Name the fibres which enable voluntary muscle to contract & relax.

Answer 3

Actin & Myosin

Question 4

Level 3 Key Terms:

What do the terms ‘origin’ and ‘insertion’ mean?

Answer 4

Origin = the non-moving point of attachment
Insertion = the moving point of attachment
Muscle contraction moves the insertion point towards the origin.

Question 5

What are the properties of muscle tissue?

Answer 5

Muscle tissue can CONTRACT
Muscle tissue is EXTENSIBLE - it can be lengthened.
Muscle tissue is ELASTIC- it returns to it’s original length after extension or contraction.
Muscle tissue is RESPONSIVE – it contracts in response to nervous stimulation.

Question 6

Level 2 Key terms -

Position

Action

Answer 6

Position = muscle location
Action = what the muscle does / what movement is made when the muscle contracts

Question 7

Muscle - triangularis

Answer 7

P= Corners of the lower lip extends over the chin
A= Draws down the mouth’s corners

Question 8

Muscle - Temporalis

Answer 8

P= Round and behind ear running down side of face towards jaw

A=Raises and lowers jaw when chewing

Question 9

Muscle - Frontalis

Answer 9

P= Across the forehead

A= Wrinkles the forehead and raises eyebrows creating a surprised expression

Question 10

Muscle - Zygomatic

Answer 10

P= Runs down cheek to corner of mouth

A= Pulls the corners of mouth upwards and sideways

Question 11

Muscle - Corrugator

Answer 11

P= Inner corners of the eyebrows

A= Draws eyebrows together as in frowning

Question 12

Muscle - Orbicularis Occuli

Answer 12

P= Surrounds orbit of the eye

A = Opens & closes the eye (wink & blink)

Question 13

Muscle - orbicularis oris

Answer 13

P = Surrounds the mouth

A = Opens & closes the mouth / speech

Question 14

Muscle - Buccinator

Answer 14

P= Main cheek muscle

A = Compresses cheeks / sucking & blowing

Question 15

Muscle - Risorius

Answer 15

P = Corner of mouth, above buccinator

A= Pulls corners of mouth up and sideways - grinning

Question 16

Muscle - Masseter

Answer 16

P=Runs at an angle down the face from the cheek bone to the jaw

A= Lifts, lowers and closes the jaw aiding mastication by exerting pressure on teeth

Question 17

Muscle - Platysma

Answer 17

P= Front and side of the neck, down to collar bones

A= Depresses lower jaw and lip wrinkling skin tissue on neck

Question 18

Muscle - Mentalis

Answer 18

P - On the chin

A = Raises the lower lip causing chin to wrinkle

Question 19

muscle - Nasalis

Answer 19

P= Covers the front of the nose

A= opens / closes - flares the nostrils

Question 20

Muscle - Procerus

Answer 20

P= Covers the bridge of the nose

A= Wrinkles the skin over the bridge of the nose

Question 21

Muscle - Sterno Mastoid

Answer 21

P= Either side of the neck

A= Individually rotates the head to one side together pulls the chin onto the chest

Question 22

Muscle - Trapezius

Answer 22

P = Across upper back, neck and shoulders

A= Raises the shoulder to the ear. Pulls the head backwards

Question 23

Muscle - Occipitalis

Answer 23

P = Back of the Head

A - Moves the scalp

Question 24

Muscle - Deltoid

Answer 24

P = Caps the top of the shoulder; is a three headed muscle

A= Brings the arm forward
Takes the arm backwards and sideways

Question 25

Muscle - Pectoralis Major

Answer 25

P = Front of the chest

A = Moves the arm away from the side of the body