Question 1

A patient presents with loss of crude touch and pressure sensation on one side of the body. Which major sensory tract is most likely affected?

Accepted Answer

Anterior spinothalamic tract

Question 2

During a neurological exam, a patient can feel touch but cannot localize it. Which brain region is most likely impaired?

Accepted Answer

Parietal cortex

Question 3

Which equation best represents the osmotic pressure maintained by plasma proteins such as albumin?

Accepted Answer

$$\Pi = CRT$$

Question 4

A patient with spinal cord injury above T6 develops dangerously high blood pressure and bradycardia. What is the most likely cause?

Accepted Answer

Autonomic dysreflexia due to sympathetic chain ganglia disruption

Question 5

Which hormone is released by the posterior pituitary and acts to increase water reabsorption in the kidneys?

Accepted Answer

Antidiuretic hormone (ADH)

Question 6

A patient is unable to voluntarily move their right arm after a stroke. Which descending motor tract is most likely damaged?

Accepted Answer

Corticospinal tract

Question 7

Which cranial nerve is responsible for balance and equilibrium, and is tested using the Rinne test?

Accepted Answer

CN VIII (Vestibulocochlear)

Question 8

Which plasma protein is most abundant and helps maintain osmotic pressure, preventing edema?

Accepted Answer

Albumin

Question 9

A patient with cerebellar damage is most likely to exhibit which clinical sign?

Accepted Answer

Ataxia (unsteady gait, poor coordination)

Question 10

Which structure connects the third and fourth ventricles, and blockage here can cause increased intracranial pressure?

Accepted Answer

Cerebral aqueduct

Question 11

Which neurotransmitter is released by preganglionic neurons in both the sympathetic and parasympathetic divisions of the autonomic nervous system?

Accepted Answer

Acetylcholine (ACh)

Question 12

A patient reports chest pain radiating to the left arm. What is the physiological basis for this referred pain?

Accepted Answer

Convergence of sensory nerves in the spinal cord

Question 13

Which hormone is responsible for stimulating uterine contractions and milk ejection during labor and breastfeeding?

Accepted Answer

Oxytocin

Question 14

Which type of neuron brings sensory information from the body into the spinal cord via the dorsal root ganglion?

Accepted Answer

First-order neuron

Question 15

Which equation describes the relationship between cardiac output, stroke volume, and heart rate?

Accepted Answer

$$CO = SV 	imes HR$$

Question 16

A patient with diabetes insipidus is most likely to have a deficiency of which hormone, and what is a key symptom?

Accepted Answer

Antidiuretic hormone (ADH); excessive urination

Question 17

Which cranial nerve innervates visceral organs such as the heart, lungs, and gut, and is used in vagal maneuvers to treat tachycardia?

Accepted Answer

CN X (Vagus)

Question 18

Which plasma protein is converted to fibrin during the coagulation phase of hemostasis?

Accepted Answer

Fibrinogen

Question 19

A patient with low albumin levels is at risk for which clinical complication?

Accepted Answer

Edema due to decreased plasma osmotic pressure

Question 20

Which endocrine gland produces melatonin, and what is its primary function?

Accepted Answer

Pineal gland; regulates sleep-wake cycles

Spinal Tracts, Sensory Systems, Blood, and Endocrine System: Anatomy & Physiology Study Guide

Study Guide - Practice Questions