A&P 2 Unit 11 [Part 1] (Lab) [Muscles Part 1] Flashcards
1
Q
A
Frontalis (Anterior View)
2
Q
A
Frontalis (Lateral View)
3
Q
Frontalis (Action)
A
- Raises eyebrows
- Wrinkles forehead horzontally
- Named for Location
4
Q
A
Occipitalis (Posterior View)
5
Q
A
Occipitalis (Lateral View)
6
Q
Occipitalis (Action)
A
- Draws scalp posteriorly
- Named for Location
7
Q
A
Orbicularis oculi (Anterior View)
8
Q
A
Orbicularis oculi (Lateral View)
9
Q
Orbicularis oculi (Action)
A
- Closes eyes (Squinting & Winking)
- Orbicularis= Fasicle direction
- oculi= eye
- Is a sphincter
10
Q
A
Orbicularis oris (Anterior View)
11
Q
A
Orbicularis oris (Lateral View)
12
Q
Orbicularis oris (Action)
A
- Compresses, purses lips
- It is a Sphincter
- oris= mouth
13
Q
*
A
Buccinator (Lateral View)
14
Q
*
A
Buccinator (Anterior View)
15
Q
*Buccinator (Action)
A
- Compresses cheeks
- Important in infants
- Refers to Buccal (Cheek)
16
Q
A
Zygomaticus (Anterior View)
17
Q
A
Zygomaticus (Lateral View)
18
Q
Zygomaticus (Action)
A
- Elevates upper lips
- Elevates corners of mouth
- Named for Location: Zygomatic Bone
19
Q
*
A
Temporalis (Lateral View)
20
Q
*
A
Temporalis (Anterior View)
21
Q
*Temporalis (Action)
A
- Elevates mandible (Chewing & Clenching Teeth)
- Named for Location
- Inserts on the medial side
22
Q
*
A
Masseter (Lateral View)
23
Q
*
A
Masseter (Anterior View)
24
Q
*Masseter (Action)
A
Elevates mandible (Chewing & Clenching Teeth)
25
Platysma (Anterior View)
26
Platysma (Lateral View)
27
Platysma (Action)
* Tenses skin of neck
* Depresses mandible
28
\*
Sternocleidomastoid (Anterior View)
29
\*
Sternocleidomastoid (Lateral View)
30
\*Sternocleidomastoid (Action)
* Bilaterally: Flexes the neck
* Unilaterally: Laterally flexes and rotates neck
* Sterno= sternum
* Cleido= clavicle
* Mastoid= mastoid process
31
\*
Scalenes (Anterior View)
32
\*Scalenes (Action)
* Elevate the ribs (For deep inhalation) **_OR_** flex the neck
33
\*
Trapezius (Posterior View)
34
\*Trapezius (Action)
* Superior Trapezius: Extends the neck
* _Works with Splenius capitis_
35
\*
Splenius capitis (Posterior View) [Deep to Trapezius]
36
\*Splenius capitis (Action)
* Bilaterally: Extends the neck
* Unilaterally: Rotates and laterally flexes the neck
* capitis= head
* _Works with Trapezius_
37
Longissimus thoracis (Posterior View) [Deep to Trapezius]
38
Longissimus thoracis (Action)
* Bilaterally: Extends vertebral column
* Unilaterally: Lateral flexion of vertebral column
* Tendon connects to back bones (Back movers)
39
\*
Rectus Abdominis (Anterior View)
40
\*Rectus Abdominis (Action)
* Flexes vertebral column
* Compresses abdomen (During breathing)
* Rectus= striaght up and down
41
\*
External oblique (Lateral View)
42
\*
Internal oblique (Lateral View)
43
\*External and Internal obliques (Action)
* Flex vertebral column
* Compress abdomen
44
\*
Transversus abdominis (Anterior View)
45
\*
Transversus abdominis (Lateral View)
46
\*Transversus abdominis (Action)
* Compresses abdomen (No vertebral flexion)
* Deepest of abes
47
External intercostals (Anterior View)
48
External intercostals (Action)
Elevate ribs
49
Internal intercostals (Anterior View) [Deep to External Intercostals]
50
Internal intercostals (Action)
Depress ribs
51
Diaphragm (Anterior View)
52
Diaphragm (Lateral View)
53
Diaphragm (Action)
* Expansion of thoracic cavity
* Compression of abdominal cavity
* Covers the liver
* Contracts= lowers
