Lab-organs Of The Head Homework

Question 1

Two muscles that form the epicranius

Answer 1

Frontalis and occipitalis

Question 2

4 muscles of mastication

Answer 2

1. Masseter
2. Temporalis
3. Medial pterygoid
4. Lateral pterygoid

Question 3

3 types of salivary glands
Type of secretion
Location of each

Answer 3

Parotid-puts base in your mouth when eating sour-exocrine-anterior to ear and; superficial to masseter

Submandibular-chemical digestion of food-exocrine-inferior to the mandible

Sublingual-chemical digestion of food-exocrine-inferior to tongue

Question 4

3 cranial nerves involved in tasting

Answer 4

1. Facial-cranial Nerve VII
2. Glossopharyngeal-cranial Nerve IX
3. Vagus-cranial nerve X

Question 5

What is the function of the cochlea?

Answer 5

Houses the hair cell receptors responsible for hearing

Question 6

What is the function of the semicircular canals?

Answer 6

Act as motion sensor/respond to movements of head and body

Question 7

What 2 structures comprise the fibrous tunic of the eye?

Answer 7

Cornea

Sclera

Question 8

What 3 structures make up the vascular tunic of the eye?

Answer 8

Iris
Choroid
Ciliary bodies

Question 9

Where is the vitreous humor located?

Answer 9

Posterior cavity of the eye

Question 10

Which tonsils are located in the oropharynx?

Answer 10

Palatine and pharyngeal

Question 11

What contains the receptors for hearing?

Answer 11

Inner ear

Question 12

What is the tube connecting the tympanic cavity with the nasopharynx?

Answer 12

Auditory