Question 1

A patient presents with swelling in their lower limbs due to fluid accumulation in the tissues. Which organ system is primarily responsible for picking up this excess fluid and returning it to the bloodstream?

Accepted Answer

Lymphatic system

Question 2

A CT scan that separates the body into left and right sections is made in a _____ plane.

Accepted Answer

Sagittal

Question 3

Which of the following best describes a negative feedback system in the regulation of body temperature?

Accepted Answer

Sweating when body temperature rises above normal

Question 4

The carpal region is _____ to the brachial region.

Accepted Answer

Distal

Question 5

Which abdominal quadrant houses the appendix?

Accepted Answer

Right lower

Question 6

When sodium bicarbonate ($$\mathrm{$$NaHCO_3$$}) $$dissolves in water, it ionizes into $$\mathrm{Na^+}$$ and a bicarbonate ion. The bicarbonate ion acts as a(n):

Accepted Answer

Weak base

Question 7

Which of the following is a function of the smooth endoplasmic reticulum (SER)?

Accepted Answer

Lipid synthesis

Question 8

Which layer of an epithelium is at the 'free edge'?

Accepted Answer

Apical surface

Question 9

The region of a long bone where longitudinal growth occurs during childhood is the:

Accepted Answer

Epiphyseal plate

Question 10

Which bone contains the dens, a projection that allows rotation of the head?

Accepted Answer

Axis

Question 11

The A band of the skeletal muscle fiber is _____ and is due to the presence of aligned _____ filaments.

Accepted Answer

Dark; myosin

Question 12

In skeletal muscle, calcium activates contraction by binding to:

Accepted Answer

Troponin on the thin filament

Question 13

Which movement of ions produces an EPSP in cochlear hair cells?

Accepted Answer

Influx of $$\mathrm{K^+}$$

Question 14

Which of the following best describes the anatomical and physiological descriptors of the parasympathetic system?

Accepted Answer

Craniosacral, rest and digest

Question 15

A person who is color-blind is most likely to have which of the following?

Accepted Answer

An absence of one or more types of cones in the fovea

Question 16

Which of the following best explains why the pupils constrict when both eyes are exposed to bright light, even if only one eye is illuminated?

Accepted Answer

The optic chiasm allows information from both eyes to reach both pretectal nuclei

Question 17

Which of the following is true regarding the function of the iris?

Accepted Answer

It controls the amount of light entering the eye

Question 18

Which of the following best describes the path of sound waves through the ear?

Accepted Answer

Tympanic membrane, ossicles, oval window, cochlear duct

Question 19

Which of the following is a function of the pineal gland?

Accepted Answer

Secretes melatonin

Question 20

Which cranial nerve is responsible for most of the parasympathetic output to the thoracic and abdominal organs?

Accepted Answer

CN X (vagus)

Question 21

Which of the following best describes the effect of a drug that blocks muscarinic receptors?

Accepted Answer

Increased heart rate

Comprehensive Study Guide: Anatomy & Physiology Fundamentals and Systems

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