Question 1

Which of the following best describes the primary function of the autonomic nervous system (ANS)?

Accepted Answer

To regulate involuntary physiological processes such as heart rate, digestion, and respiratory rate

Question 2

A patient is experiencing increased heart rate, dilated pupils, and decreased digestive activity after a car accident. Which division of the autonomic nervous system is primarily responsible for these responses?

Accepted Answer

Sympathetic division

Question 3

Which of the following structures is responsible for focusing light onto the retina?

Accepted Answer

Lens

Question 4

Which photoreceptor is primarily responsible for night vision?

Accepted Answer

Rods

Question 5

A person is unable to distinguish colors but can see in dim light. Which photoreceptor is likely functioning normally?

Accepted Answer

Rods

Question 6

Which structure detects sound vibrations in the ear?

Accepted Answer

Cochlea

Question 7

Which structure in the inner ear is responsible for detecting linear acceleration?

Accepted Answer

Vestibule

Question 8

Olfactory receptors are classified as which type of sensory receptor?

Accepted Answer

Chemoreceptors

Question 9

Which cranial nerve carries visual information from the eye to the brain?

Accepted Answer

Optic nerve

Question 10

A patient is diagnosed with myopia. Which of the following best describes this condition?

Accepted Answer

Light focuses in front of the retina, causing difficulty seeing distant objects

Question 11

Which of the following best describes the difference between rods and cones in the retina?

Accepted Answer

Rods are more numerous and sensitive to dim light, cones detect color and detail

Question 12

A person with hyperopia has trouble seeing objects up close. Which of the following best explains why?

Accepted Answer

The eyeball is too short, causing light to focus behind the retina

Question 13

Which of the following equations best represents the relationship between focal length ($$f$$), object distance ($$d_o$$), and image distance ($$d_i) in $$the eye's lens system?

Accepted Answer

$$\frac{1}{f} = \frac{1}{d_o} + \frac{1}{d_i}$$

Question 14

A patient presents with vertigo and loss of balance after a head injury. Which structure is most likely affected?

Accepted Answer

Vestibule

Question 15

Which of the following best describes the function of the semicircular canals?

Accepted Answer

Detecting rotational movements of the head

Question 16

Which muscle is responsible for moving the eye laterally (away from the nose)?

Accepted Answer

Lateral rectus

Question 17

A patient cannot move their right eye upward. Which muscle is most likely paralyzed?

Accepted Answer

Superior rectus

Question 18

Which of the following best describes the pathway of tears from production to drainage?

Accepted Answer

Lacrimal gland → lacrimal canaliculi → nasolacrimal duct → nasal cavity

Question 19

Which of the following best explains why the fovea centralis provides the sharpest vision?

Accepted Answer

It contains a high density of cones and no blood vessels

Question 20

Which of the following is a real-life example of the parasympathetic nervous system at work?

Accepted Answer

Constriction of pupils and increased digestive activity after eating a meal

Chapter 14/15 Guided Notes

Study Guide - Practice Questions

Study Guide - Flashcards