MUSCULAR SYSTEM PT. 2

Intrinsic muscles of the tongue primarily:

• Change the position of the tongue

• Alter the shape of the tongue

• Elevate the hyoid

• Depress the hyoid

Muscles of the pharynx include palatal muscles and pharyngeal constrictors and primarily help to:

• Move food down the digestive tract

• Move the eyeball

• Control breathing only

• Move the mandible

Extrinsic muscles of the eye are located where and serve what function?

• Inside the eyeball; produce tears

• Outside of the eye; move the eyeball

• In the eyelid; close the eye

• In the orbit; protect the eye only

Which pectoral muscle is listed in the document?

• Pectoralis major

• Levator scapulae

• Rectus femoris

• Deltoid

Which muscle protracts the scapula and assists in upward rotation according to the document?

• Pectoralis minor

• Serratus anterior

• Trapezius

• Rhomboid major

Which muscle is listed as depressing the scapula?

• Serratus anterior

• Pectoralis minor

• Trapezius (upper fibers)

• Levator scapulae

Which muscle expands the thoracic cavity during respiration?

• Internal intercostal

• External intercostal

• Diaphragm

• Subcostal

Which muscles are listed as elevating the ribs?

• Internal intercostals and subcostals

• External intercostal and serratus posterior superior

• Diaphragm and transversus thoracis

• Serratus posterior inferior only

Which muscles are listed as depressing the ribs?

• External intercostal and serratus posterior superior

• Internal intercostals and serratus posterior inferior

• Diaphragm only

• Levatores costarum

The abdominal muscles listed include all EXCEPT:

• External oblique

• Internal oblique

• Transversus abdominis

• Latissimus dorsi