Honors Biology Nervous/Muscular/Skeletal System Flashcard

Front

What are neurotransmitters?

Back

Neurotransmitters are chemical messengers that transmit signals across a synapse from one neuron to another, playing a crucial role in communication within the nervous system.

Front

Which systems work together to deliver nutrients to brain cells?

Back

The Circulatory, Digestive, and Nervous systems work together to deliver nutrients to brain cells.

Front

Do babies have more or fewer bones than adults?

Back

Babies have more bones than adults. Babies are born with approximately 270 bones, while adults have 206 bones due to bone fusion.

Front

What is the function of the myelin sheath?

Back

The myelin sheath is an insulating layer that surrounds the axons of some neurons, facilitating faster neural conduction and improving signal transmission.

Front

What are bone cells called?

Back

Bone cells are known as osteocytes.

Front

What is the role of the axon in a neuron?

Back

The axon is a long, slender projection of a neuron that conducts electrical impulses away from the neuron's cell body.

Front

What is the difference between somatic and autonomic nerves?

Back

Somatic nerves control voluntary movements and sensory information, while autonomic nerves regulate involuntary functions such as heart rate and digestion.

Front

What is the primary function of the skeletal system?

Back

The primary function of the skeletal system is to provide structure, support, and protection for the body's organs, as well as to facilitate movement.

Front

How do neurotransmitters affect mood?

Back

Neurotransmitters like dopamine and serotonin play significant roles in regulating mood, emotions, and feelings of well-being.

Front

What is the significance of the brain in the nervous system?

Back

The brain is the control center of the nervous system, responsible for processing sensory information, coordinating responses, and regulating bodily functions.