#1
Which organ system is responsible for pumping blood throughout the body?
Circulatory system
ExplanationTransports oxygen, nutrients, and waste products.
#2
What is the primary function of the respiratory system?
To exchange gases with the environment
ExplanationFacilitates oxygen uptake and carbon dioxide release.
#3
Which of the following is a function of the nervous system?
Detecting and responding to stimuli
ExplanationCoordinates body actions and transmits signals.
#4
What is the name of the fluid that lubricates joints in the skeletal system?
Synovial fluid
ExplanationReduces friction and provides nutrients to joints.
#5
What is the purpose of the excretory system in animals?
To filter waste products from the blood
ExplanationEliminates nitrogenous wastes and maintains osmotic balance.
#6
Which of the following organs is part of both the respiratory and digestive systems?
Lungs
ExplanationInvolved in gas exchange and vocalization.
#7
Which of the following is NOT a function of the skeletal system?
Generating nerve impulses
ExplanationSupports body structure and protects internal organs.
#8
What type of muscle is found in the walls of internal organs like the stomach and intestines?
Smooth muscle
ExplanationInvoluntary muscle responsible for organ movement.
#9
Which organ system is responsible for filtering waste products from the blood?
Excretory system
ExplanationRemoves metabolic wastes and maintains fluid balance.
#10
What is the primary function of the endocrine system?
Regulating metabolism and hormone levels
ExplanationSecretes hormones that regulate various bodily functions.
#11
What is the name of the process by which oxygen and carbon dioxide are exchanged between the lungs and blood?
Diffusion
ExplanationMovement of molecules from high to low concentration.
#12
Which hormone is responsible for regulating blood sugar levels in the body?
Insulin
ExplanationFacilitates glucose uptake and storage.
#13
Which of the following is a function of the integumentary system?
Regulating body temperature
ExplanationActs as a barrier and aids in thermoregulation.
#14
Which of the following is NOT a component of the lymphatic system?
Liver
ExplanationConsists of lymph nodes, vessels, and lymphoid organs.
#15
What is the main function of the cerebellum in the brain?
Controlling voluntary movements
ExplanationCoordinates muscle movements and balance.
#16
Which of the following is NOT a function of the digestive system?
Producing antibodies
ExplanationBreaks down food and absorbs nutrients.
#17
What is the name of the outermost layer of the skin?
Epidermis
ExplanationProtective outer layer composed of epithelial cells.