and answers 2024\2025 A+ Grade
Human Movement System (HMS)
- correct answer The collective components and structures that work together to move the body:
muscular, skeletal, and nervous systems.
Kinetic Chain
- correct answer A concept that describes the human body as a chain of interdependent links that work
together to perform movement.
Nervous System
- correct answer A network of specialized cells called neurons that transmit and coordinate signals,
providing a communication network within the human body.
Neuron
- correct answer Specialized cell that is the functional unit of the nervous system.
Nucleus
- correct answer Cellular structure or organelle that contains the majority of the cell's genetic material in
the form of chromosomes.
Organelles
- correct answer Tiny cellular structures that perform specific functions within a cell. Examples include
nuclei, mitochondria, lysosomes, ribosomes, and the endoplasmic reticulum.
Mitochondria
- correct answer The parts of the cell that use nutrients to create energy for the cell; commonly known
as the powerhouses of the cell.
, Effector Sites
- correct answer A part of the body, such as a muscle or organ, that receives a signal from a neuron to
produce a physiological response.
Electrolytes
- correct answer Minerals that have an electrical charge to help transmit nerve impulses throughout the
body, such as sodium, potassium, and magnesium.
Central Nervous System (CNS)
- correct answer A division of the nervous system that includes the brain and spinal cord.
Peripheral Nervous System (PNS)
- correct answer Nerves that connect the rest of the body to the central nervous system.
Afferent Pathway
- correct answer Sensory pathway that relays information to the central nervous system.
Efferent Pathway
- correct answer A motor pathway that relays information from the central nervous system to the rest of
the body.
Interneurons
- correct answer Neurons located within the spinal cord and brain that transmit impulses between
afferent and efferent neurons.
Mechanoreceptors
- correct answer Specialized structures that respond to mechanical forces (touch and pressure) within
tissues and then transmit signals through sensory nerves.
Somatic Nervous System
- correct answer Nerves that serve the outer areas of the body and skeletal muscle and are largely
responsible for the voluntary control of movement.