TEAS Science: Human Body Systems and Anatomy

Question 1

Which chamber of the heart pumps oxygenated blood to the body's systemic circulation?

Accepted Answer

Left ventricle

Answer

The left ventricle pumps oxygenated blood received from the left atrium out through the aorta to the systemic circulation.

Question 2

What is the primary function of the nephron in the kidney?

Accepted Answer

Filtering blood and forming urine

Answer

The nephron is the functional unit of the kidney responsible for filtering blood, reabsorbing nutrients, and excreting waste as urine.

Question 3

Which type of muscle tissue is found in the walls of the digestive tract and blood vessels?

Accepted Answer

Smooth muscle

Answer

Smooth muscle is involuntary and non-striated, found in hollow organs such as the digestive tract, bladder, and blood vessels.

Question 4

The sinoatrial (SA) node is best described as the heart's:

Accepted Answer

Natural pacemaker

Answer

The SA node is the heart's natural pacemaker, initiating the electrical impulse that triggers each heartbeat.

Question 5

Which organ system is primarily responsible for regulating body temperature through sweating and shivering?

Accepted Answer

Nervous system and integumentary system

Answer

The nervous system detects temperature changes and coordinates responses like sweating (via sweat glands in the skin/integumentary system) and shivering (via muscles).

TEAS Practice Test

TEAS Practice Test

TEAS Science: Human Body Systems and Anatomy