Logo

Nursing Elites

ATI TEAS 7

anatomy

1. Which of the following is responsible for generating the electrical impulses that regulate the heartbeat?

Correct answer: D

Rationale: The correct answer is D: Sinoatrial (SA) node. The SA node, also known as the heart's natural pacemaker, is responsible for generating the electrical impulses that regulate the heartbeat. These impulses initiate each heartbeat by causing the atria to contract. The other options, Aorta, Pulmonary veins, and Coronary arteries, are important structures in the cardiovascular system but are not directly responsible for generating the electrical impulses that regulate the heartbeat.

2. The doctor carefully examined the patient. Which word is the comparative form of the adjective "careful"?

Correct answer: C

Rationale: The comparative form of an adjective compares two things.

3. A car is accelerating down a hill. Which of the following forces is NOT acting on the car?

Correct answer: B

Rationale: Normal force from the road. The normal force acts perpendicular to the surface of contact and does not contribute to the acceleration down the hill.

4. What is the waxy or oily substance produced by sebaceous glands that helps lubricate the skin and hair?

Correct answer: C

Rationale: The correct answer is C: Sebum. Sebum is a waxy or oily substance produced by the sebaceous glands in the skin. It helps lubricate and waterproof the skin and hair, preventing them from drying out. Keratin is a protein found in the skin, hair, and nails, providing structure and strength. Melanin is a pigment that gives color to the skin, hair, and eyes. Sweat is produced by sweat glands and helps regulate body temperature by cooling the skin through evaporation. In this question, sebum specifically refers to the substance produced by sebaceous glands, making it the correct answer.

5. Which property of a substance describes how much matter is packed into a given space?

Correct answer: D

Rationale: Density is the property of a substance that describes how much matter is packed into a given space. It is calculated by dividing the mass of the substance by its volume. Mass refers to the amount of matter in an object, volume is the amount of space an object occupies, and weight is the force of gravity acting on an object's mass. Density specifically relates to how tightly packed the particles of a substance are.

6. What is the condition called when someone experiences a temporary loss of consciousness due to a lack of blood flow to the brain?

Correct answer: C

Rationale: The correct answer is C: 'Syncope (fainting)'. Syncope is the temporary loss of consciousness caused by a temporary drop in blood flow to the brain, leading to a lack of oxygen reaching the brain. This can occur due to various reasons such as dehydration, sudden drop in blood pressure, or emotional stress. A stroke (option A) is a sudden interruption in the blood supply to the brain, leading to brain cell damage. Epilepsy (option B) is a neurological disorder characterized by recurrent seizures. Multiple sclerosis (option D) is a chronic autoimmune disease that affects the central nervous system. Therefore, the correct term for a temporary loss of consciousness due to lack of blood flow to the brain is syncope.

Similar Questions

What is the condition called when someone experiences a temporary loss of consciousness due to a lack of blood flow to the brain?
What is the relationship between the Pauli exclusion principle and the structure of the atom?
The term that refers to the specific role and position an organism occupies within an ecosystem is called a:
The formula for calculating heart rate is HR = (220 - age) * 0.65. If a patient's heart rate is 136.5, what is their age?
Which organ produces insulin?
Which of the following is the main organ responsible for regulating sleep?

Access More Features

ATI TEAS Premium Plus
$149.99/ 90 days

  • Actual ATI TEAS 7 Questions
  • 3,000 questions with answers
  • 90 days access

ATI TEAS Basic
$99/ 30 days

  • 3,000 Questions with answers
  • 30 days access

Other Courses