Muscles Of Respiration

Question 1

The three heads of the diaphragm are?

Answer 1

1) sternal head
2) costal head
3) vertebral head

Question 2

What is the insertion of the diaphragm?

Answer 2

Central tendon

Question 3

What nerve innervates the diaphragm?

Answer 3

Phrenic nerve

Question 4

Where do the external intercostal muscles connect?

Answer 4

Between the ribs (interosseous portion)

Question 5

Action of external intercostal muscles?

Answer 5

Elevate the ribs

Question 6

Where do the internal intercostal muscles for inhalation connect?

Answer 6

Between interchondral portion of ribs

Question 7

Action of interchondral internal intercostal muscles?

Answer 7

Elevate ribs

Question 8

Origin of sternocleidomastoid muscle?

Answer 8

Mastoid process of temporal bone

Question 9

Insertion of sternocleidomastoid muscle?

Answer 9

Clavicle bone and sternum bone

Question 10

Action of sternocleidomastoid muscle?

Answer 10

Elevate rib cage

Question 11

Additional muscles of inhalation?

Answer 11

Scalene mm

Question 12

Where do the internal intercostal muscles for forced exhalation connect?

Answer 12

Between the interosseous portion of the ribs.

Question 13

Action of the interosseous internal intercostal muscles?

Answer 13

Depress ribs

Question 14

Location of transverse thoracis m?

Answer 14

Inside the rib cage

Question 15

Action of the transverse thoracis m?

Answer 15

Depress ribs

Question 16

Action of the abdominal muscles?

Answer 16

Compress abdomen and raise diaphragm

Question 17

What are the 3 layers of abdominal muscles of forced exhalation?

Answer 17

1) transverse abdominal m.
2) internal abdominal oblique m.
3) external abdominal oblique m.

Question 18

What is the major muscle of inhalation?

Answer 18

The diaphragm