Muscles of Respiration

Question 1

Inserts into the central tendon

Answer 1

Diaphragm

Question 2

Originates in the transverse processes thoracic vertebrae, inserts into the subjacent ribs, elevates the rib cage, and is innervated by the intercostal nerves

Answer 2

Levators costarum brevis and longus

Question 3

This muscle of inspiration originates in the transverse process of the cervical verbetrae and inserts into ribs 1 & 2

Answer 3

Scalenus medius

Question 4

This muscle of expiration originates in the lower ribs- lumbar vertebrae, inserts into the linea alba via aponeurosis, inguinal ligament, is in charge of compressing the abdomen, and is innervated by T7-T12.

Answer 4

External Oblique Abdominis

Question 5

This muscle of inspiration is innervated by cranial nerve XI

Answer 5

Sternocleidomastoid

Question 6

This muscle of inspiration originates in the transverse process of the cervical vertebrae and inserts into rib 2

Answer 6

Scalenus posterior

Question 7

This muscle of inspiration originates in the clavicle, sternum, ribs 1-6 and inserts into the humerus. It is incharge of adducting the humerus and elevating the ribs when the humerus is fixed. Innervated by the brachial plexus.

Answer 7

Pectoralis Major

Question 8

This muscle of inspiration originates in the spinous processes and upper thoracic vertebrae and inserts into subjacent ribs at rib angle

Answer 8

Serratus posterior superior

Question 9

This muscle of expiration originates in the lateral margin of the sternum, inserts into the chondral surface of ribs 2-6, is innervated by the intercostal nerves, and is in charge of depressing the ribs.

Answer 9

Transversus Thoracis

Question 10

Originates in the sternum and clavicle and inserts into the mastoid process

Answer 10

Sternocleidomastoid

Question 11

This muscle of inspiration originates in the transverse processes of the cervical vertebrea and inserts into the first rib

Answer 11

Scalenus Anterior

Question 12

This muscle of expiration originates in the ilium- lumbar vertebrae, inserts into the linea alba, compresses the abdomen, and innervates T7-T12 and L1

Answer 12

Transversus Abdominis

Question 13

This muscle of expiration originates in the xiphisternum, and chondral portions of the lower ribs, inserts into the pubis, compresses the abdomen, and is innervated by T7-T12

Answer 13

Rectus Abdominis

Question 14

This muscle of inspiration originates in the inferior clavicle and inserts into rib 1. It elevates the rib cage and innervates the brachial plexus.

Answer 14

Subclavius

Question 15

What 3 muscles are innervated by the cervical nerves?

Answer 15

Scalenus Anterior, Medius, and Posterior

Question 16

Originates in the lower margin rib cage, xiphoid process, and vertebral column (L1-4)

Answer 16

Diaphragm

Question 17

These two muscles of inspiration originate in the lower surface of ribs 1-11 and insert into the upper surface of the subjacent rib

Answer 17

External and Internal intercostals

Question 18

Flattens diaphragm, expands thoracic cavity vertically

Answer 18

Diaphragm

Question 19

These muscles (can be 2) of respiration originates in the inferior margin of ribs 1-11, inserts in the superior surface of hte subjacent rib, is innervated by the intercostal nerves, and is in charge of depressing the ribs.

Answer 19

Internal intercostals and Innermost intercostals

Question 20

Innervates phrenic nerves C3, C4, and C5, but mostly C4

Answer 20

Diaphragm

Question 21

Elevates rib cage, increases anterior dimension and innervates intercostal nerves (T1-11) & Subcostal T12

Answer 21

External intercostals

Question 22

This muscle of inspiration originates in ribs 2-5 and inserts into the coracoid proces of the scapuls where it pulls the caracoid inferiorly and is innervated by the brachial plexus.

Answer 22

Pectoralis minor

Question 23

This muscle of inspiration originates in ribs 1-9 and inserts vertebral border of scapula. It is in charge of pulling the shoulders antero-laterally and elevates the ribs when shoulders are fixed; It innervates the brachial plexus

Answer 23

Serratus Anterior

Question 24

This muscle of expiration originates in the iliac crest- lumbar vertebrae, inserts into the linea alba, compresses the abdomen, and innervates T7-T12 and L1.

Answer 24

Internal Oblique Abdominis

Question 25

This muscle of inspiration tilts the head and elevates the rib cage when the head is fixed

Answer 25

Sternocleidomastoid