Practice Science TEAS Test

Questions 64

ATI TEAS 7

ATI TEAS 7 Test Bank

Practice Science TEAS Test Questions

Question 1 of 5

Which hormone is released by the pituitary gland?

Correct Answer: B

Rationale: The correct answer is B: Luteinizing Hormone. The pituitary gland secretes luteinizing hormone, which plays a crucial role in the reproductive system by stimulating ovulation in females and testosterone production in males. Estrogen, progesterone, and testosterone are not directly released by the pituitary gland but are instead produced by other glands such as the ovaries, testes, and adrenal glands. Therefore, B is the correct choice as it is the hormone directly released by the pituitary gland.

Question 2 of 5

Which type of blood cell is responsible for carrying oxygen?

Correct Answer: B

Rationale: The correct answer is B: Red blood cell. Red blood cells contain hemoglobin, a protein that binds to oxygen in the lungs and carries it to tissues throughout the body. White blood cells (A) are responsible for fighting infections, platelets (C) help with blood clotting, and plasma (D) is the liquid component of blood that carries nutrients and waste products. Thus, red blood cells are the only cells specifically designed to transport oxygen, making them the correct choice.

Question 3 of 5

Blood is carried away from the heart in large vessels known as which of the following?

Correct Answer: A

Rationale: The correct answer is A: Arteries. Arteries carry blood away from the heart because they have thick, muscular walls that can withstand the high pressure of blood being pumped by the heart. Arterioles are smaller branches of arteries, not the main vessels carrying blood away from the heart. Veins carry blood back to the heart, while venules are small vessels that collect blood from capillaries. Thus, the correct choice is arteries as they are specifically designed to carry blood away from the heart with their unique structure and function.

Question 4 of 5

What is the role of the diaphragm in respiration?

Correct Answer: B

Rationale: The correct answer is B: To contract and expand the lungs. The diaphragm is a dome-shaped muscle that plays a crucial role in respiration by contracting and relaxing to create changes in lung volume, allowing air to flow in and out of the lungs. When the diaphragm contracts, it flattens, increasing the space in the chest cavity and causing inhalation. When it relaxes, it returns to its dome shape, decreasing the space in the chest cavity and causing exhalation. Incorrect choices: A: To regulate air pressure in the lungs - While the diaphragm indirectly affects air pressure by creating changes in lung volume, its primary role is in creating the necessary space for inhalation and exhalation. C: To store oxygen - The diaphragm is a muscle and does not store oxygen. Oxygen is primarily stored in the blood and tissues. D: To break down carbon dioxide - The diaphragm is not involved in breaking down carbon dioxide. Carbon dioxide is

Question 5 of 5

Which structure in the skin is responsible for producing melanin?

Correct Answer: B

Rationale: The correct answer is B: Melanocyte. Melanocytes are specialized cells in the skin that produce melanin, the pigment responsible for skin color. They are located in the epidermis and transfer melanin to nearby keratinocytes. Sudoriferous glands (A) produce sweat, sebaceous glands (C) produce sebum, and hair follicles (D) are responsible for hair growth. Therefore, they are not involved in melanin production in the skin.

Similar Questions

Join Our Community Today!

Join Over 10,000+ nursing students using Nurselytic. Access Comprehensive study Guides curriculum for ATI TEAS 7-ATI TEAS 7 and 3000+ practice questions to help you pass your ATI TEAS 7-ATI TEAS 7 exam.

Call to Action Image