Muscles To Know (Part 1) Flashcards Preview

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Flashcards in Muscles To Know (Part 1) Deck (26)
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1
Q

Where would you find external intercostals?

A

Between the ribs

2
Q

What do external intercostals do?

A

Elevates rib cage when inhaling

3
Q

Where would you find internal intercostals?

A

In between the ribs with external intercostals lateral and the sternum medial

4
Q

What do internal intercostals do?

A

During forceful exhalation (eg. coughing) it depresses and retracts the ribs

5
Q

What major role does the diaphragm take part in?

A

Respiration

6
Q

What does contraction of the diaphragm mean?

A

Increase in volume of the thoracic cavity

- air is pulled into lungs

7
Q

Where would you find external obliques?

A

Most outer abdominal muscles

- can see them (superficial)

8
Q

Where would you find internal obliques?

A

Below the external abdominal muscle

9
Q

What do the abdominal oblique muscles allow? (3)

A
  1. Twists
  2. Side bends
  3. Sit ups
10
Q

Where would you find the transverse abdomen muscle?

A

Below the obliques muscles

- inner most

11
Q

What does the transverse abdominis help with? (3)

A
  1. Compress the ribs and viscera
  2. Forced expiration
  3. Bowl movements
12
Q

Where would you find the rectus abdominis?

A

Runs vertically along the abdominal wall

13
Q

What is the rectus abdominus important for?

A

Postural muscles

14
Q

What does the rectus abdominus allow? (3)

A
  1. Flexing of the lumbar spine
    - crunches
  2. Forceful respiration
  3. Compression
15
Q

Where would you find the sternocleidomastoid?

A

Runs obliquely across the side of the neck

16
Q

What does the sternocleidomastoid muscle do? (4)

A
  1. Rotates the head to the opposite side
  2. Rotates the head obliquely
  3. Flexes the neck
  4. Extends the head
17
Q

Where would you find the trapezius?

A

Middle upper back

18
Q

What does the trapezius do? (4)

A
  1. Extends the head and neck
  2. Rotates the head and neck
  3. Shrugs the shoulders
    - scapula moves up and down
  4. Squeezes should blades together
19
Q

Where would you find the deltoid?

A

By the shoulders

20
Q

What does the deltoid do?

A

Abducts the upper arm

21
Q

Where would you find the latissimus dorsi?

A

Mid back

22
Q

What does the latissimus dorsi do?

A

Extends the upper arm (posteriorly) from the shoulder

23
Q

Where would you find the pectoralis minor?

A

Starts by the scapula and goes down to link with the ribs

24
Q

What does the pectoralis minor do? (2)

A
  1. Brings the shoulders forward

2. Lifts the rib cage

25
Q

Where would you find the pectoralis major?

A

On your upper chest

26
Q

What does the pectoralis major do? (2)

A
  1. Adducts the arm
    - medial direction
  2. Extends the arm at the shoulder from a flexed position
    - anterior direction

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