Muscles of Head, Neck, Trunk Flashcards
(55 cards)
1
Q
A
Buccinator
Pulls cheeks against teeth when chewing
2
Q
A
Occipitofrontalis
3
Q
A
Occipital Belly
Retracts scalp slightly
4
Q
A
Frontal Belly
Elevates eyebrows and wrinkles skin of forehead
5
Q
A
Orbicularis Oculi
Closes the eyes
6
Q
A
Orbicularis Oris
Closes and Purses Lips
7
Q
A
Platysma
- Tenses skin of the neck
- Depresses Lower Lip
8
Q
Epicranius
A
Composed of the occipitofrontalis muscle and an epicranial aponeurosis
9
Q
Zygomaticus Major
A
Elevates Corner of Mouth
10
Q
Depressor Anguli Oris
A
Depresses corner of mouth
11
Q
Mastication Definition
A
Process of Chewing
12
Q
A
Masseter
- Elevates Mandible
- Protracts Mandible
13
Q
A
Temporalis
- Elevates Mandible
- Retracts Mandible
14
Q
Medial Pterygoid
A
- Elevates Mandible
- Moves Mandible Side to Side
15
Q
Lateral Pterygoid
A
- Elevates Mandible
- Moves Mandible Side To Side
16
Q
A
Genioglossus
- Protracts Tongue
17
Q
Styloglossus
A
Retracts Tongue
18
Q
A
Hyoglossus
- Depresses Tongue
19
Q
A
Sternocleidomastoid
- Rotates Head to One Side
- Flex the Head/Neck
20
Q
Splenius Capitis
A
- Rotates head to one side
- Extend the Head/Neck
21
Q
Suprahyoid Bones Function
A
Elevate the Hyoid Bone
22
Q
A
Digastric
- Elevates Hyoid
- Depresses Mandible
23
Q
A
Stylohyoid
- Elevates Hyoid Bone
24
Q
A
Mylohyoid
- Elevates Hyoid
- Raises Floor of Mouth
25
Geniohyoid
* Elevates Hyoid Bone
26
Sternohyoid
* Depresses Hyoid
27
Sternothyroid
* Depresses Thyroid Cartilage
28
Thyrohyoid
* Depresses Hyoid Bone
* Raises Thyroid Cartilage
29
Superficial Back Muscles Function
Move the scapula or humerus
30
Quadratus Lumborum Function
* Together
* Extend Lumbar Vertebral Column
* Unilaterally
* Each laterally flexes vertical column
31
Trapezius
32
Trapezius
* Elevates
* Depresses
* Rotates
* Adducts the Scapula
* Extends Head
33
Latissimus Dorsi
Look for this on donor\*
34
Levator Scapulae
35
Rhomboid Muscles
36
Erector Spinae
Group of Muscles that extend Verterbral Column
Consist of:
Iliocostalis
Longissimus
Spinalis
37
Superficial Thorax Muscles
Move the upper limb and not involved with respiration
38
What type of muscles are Deep Thorax Muscles
Repiration Muscles
39
Diaphragm
Contraction pulls the central portion down, increasing vertical dimensions of thorax. Flattens out when contracts.
40
External Intercostals
Elevate ribs during inhalation, with fibers running infermedially
41
Internal Intercostals
Depress ribs during exhalation with fibers running inferlaterally
42
Splenius Muscle
43
Pectoralis Major
44
Pectoralis Minor
Goes from 3-5 Ribs to the Coracoid Process of Scapula
45
Serratus Anterior
46
Study the location of the Scalenes
47
Bilaterally Definition
Flex vertebral column and compress abdominal wall
48
External Oblique
Fibers run infermedially, and similar to External Intercostal
49
Internal Oblique
Fibers run inferolaterally and similar to Internal Intercostal
50
Transversus Abdominis
Laterally flex vertebral column
51
Rectus Abdominis
Flex vertebral column and compres sabdominal wall
52
Iliocostalis
Laterally flexes vertebral column
53
Longissimus
Laterally flexes vertebral column
54
Spinalis
Laterally flexes vertebral column
55
Functions of Pelvic Floor and Perineum
CLose inferior opening of pelvis
Support the pevlic organs
Assist with defecation, voluntary part of urination and childbirth
