HBS part 1 flashcards

Front

Levels of organization of an organism

Back

Cell, Tissue, Organ, Organ system

Front

Homeostasis

Back

The ability of an organism to maintain a stable internal environment.

Front

Negative feedback

Back

it acts to oppose the initial stimulus, maintaining a balanced internal environment within an organism

Front

Nervous system

Back

The network of nerve cells and fibers that transmits nerve impulses between parts of the body.

Front

Impulses

Back

Electrical signals that travel along neurons.

Front

Neurons

Back

Nerve cells that transmit impulses.

Front

How a neuron sends a message

Back

Neurons send messages through electrical impulses and neurotransmitters.

Front

Sensory neuron

Back

Neurons that carry incoming information from the sensory receptors to the brain and spinal cord.

Front

Motor neuron

Back

Neurons that carry outgoing information from the brain and spinal cord to the muscles and glands.

Front

Interneuron

Back

Neurons that communicate internally and intervene between the sensory inputs and motor outputs.