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kines head and neck > Head And Neck > Flashcards

Head And Neck Flashcards

0
Q

Shape of disc at TMJ? Type of joint?

A

Bi-concave, considered a complex modified hinge joint

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1
Q

What type of joints are the sutures of the skull?

A

Synarthroidal

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2
Q

Motions at the TMJ on the x axis?

A

Sagittal plane elevation and depression, more in lower portions of joint

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3
Q

Motions at the TMJ around the y axis?

A

Lateral deviation, protraction, retraction, along the transverse plane, translatory, upper portion of joint

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4
Q

There is a mechanical linkage of TMJ elevation with _________?

A

Retraction

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5
Q

There is a mechanical linkage of TMJ depression with_______?

A

Protraction

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6
Q

What actions occur at the AO joint?

A

Flexion, extension (x axis), lateral Flexion (z axis)

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7
Q

T or F. The AO joint is a uniaxial pivot joint

A

False! the AO joint is biaxial condylar joint! (x and z)

The AA joint is a uniaxial pivot joint. ( y axis)

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8
Q

Action at the AA joint?

A

Lateral rotation on the Y axis

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9
Q

T or F. The zygapophyseal joints at C2 to C7 are triaxial planar joints and work collectively to give more movement.

A

True

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10
Q

At what joint does the first 5 degrees of neck flexion occur?

A

AO

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11
Q

At what joint does the first 15 degrees of neck extension as well as the first 5 degrees of lateral flexion occur?

A

AO

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12
Q

T or F. The last 45 degrees of neck rotation occur at AA joint on the y axis?

A

False. It’s the first 45 degrees, further at C2 to C7

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13
Q

Name two strong elevators for mastication.

A

Temporalis and masseter. Surprise palpation! Take a moment to palpate you masseter. Stop clenching it, physiology final is over, we can relax now.

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14
Q

Name the action of the medial pterygoid.

A

Good closer due to a line of pull similar to massetter. Also protracts, also lateral deviation to the opposite side.

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15
Q

What two muscles lateral deviate the jaw to the opposite side?

A

Medial and lateral pterygoid

16
Q

T or F. At the jaw, closers are stronger than openers, opening is more passive.

A

True

17
Q

The hyoid is typically in line with which vertebrae?

A

C4

18
Q

What is the Main function of the suprahyoids? Hint, it’s not opening the jaw.

A

To protect the airway by getting it out of the way when you swallow, in other Wikipedia words, elevate the hyoid and widen the esophagus during swallowing.

19
Q

T or F. The infrahyoids offer a stabilizing synergy with the suprahyoids.

A

True

20
Q

Name all the actions of Hollands favorite SCM.

A

Flexes at C2 to C7 joint, extends at AO joint, ipsilateral lateral (can I say that?) flexion, and contralateral rotation. Having two heads means lots of actions.

21
Q

RCA

What joint, what action?

A

AO flexor

22
Q

RCL

What joint? What action?

A

AO, lateral flexor

23
Q

RCP Major

What joint? What action?

A

AO Joint, extensor, AA joint ipsilateral rotation, ipsilateral lateral flexion

24
Q

RCP Minor

What joint? What action?

A

AO, extension and same side lateral flexor

25
Q

OCS

What joint, what action?

A

AO, extend and lateral flex on same side

26
Q

OCI

What joint? What action?

A

AA joint, rotation to same side.

27
Q

Longus capitis

Action?

A

Flexes cervical spine, ipsilateral lateral flexion, straight orientation (not gay) of muscle fibers means no rotation.

28
Q

Longus colli

Actions?

A

Flexes cervical spine, lateral flexor, like SCM, directional obliqueness makes it a contralateral rotator

29
Q

Splenius Capitis

Actions?

A

Extensor
Lateral flexor
Ipsilateral rotation
Attaches on mastoid proccess, which I will never forget because it was on Keith’s very hard quiz last summer that I did poorly on.

30
Q

Splenius cervicis

Actions?

A

Extension
Lateral flexion
And ipsilateral rotation of cervical spine only as it does not cross the AO joint.

31
Q

Anterior scalene actions?

A

Flexor, lateral flexor, contralateral rotation

32
Q

Middle scalene action?

A

Flexor, ipsilateral lateral flexor, very vertical orientation

33
Q

Posterior scalene action?

A

Ipsilateral lateral flexion,

34
Q

Actions of the upper traps are ipsilateral lateral flexion and _______?

A

Contralateral rotation

35
Q

Actions of the levator scapulae are contralateral rotation, ipsilateral lateral flexion, and ___________?

A

Extension

kines head and neck (1 decks)

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