Sensory Receptors

Front

What is a stimulus?

Back

A stimulus is any change in the environment that can provoke a response in an organism.

Front

What are sensory receptors?

Back

Sensory receptors are specialized nerve endings that detect stimuli and send signals to the nervous system.

Tags

NGSS.MS-LS1-8

Front

What is the difference between internal and external stimuli?

Back

Internal stimuli originate from within the body (e.g., hunger), while external stimuli come from the environment (e.g., loud noises).

Tags

NGSS.MS-LS1-8

Front

What is a response in biological terms?

Back

A response is how an organism reacts to a stimulus, which can be voluntary or involuntary.

Front

What is the Central Nervous System (CNS)?

Back

The Central Nervous System (CNS) is made up of the brain and spinal cord, responsible for processing information and coordinating responses.

Front

What is the Peripheral Nervous System (PNS)?

Back

The Peripheral Nervous System (PNS) consists of all the nerves outside the CNS that connect the brain and spinal cord to the rest of the body.

Front

What role do sensory receptors play in the nervous system?

Back

Sensory receptors detect changes in the environment and convert them into electrical signals that are sent to the brain.

Tags

NGSS.MS-LS1-8

Front

What is homeostasis?

Back

Homeostasis is the process by which organisms maintain a stable internal environment despite changes in external conditions.

Tags

NGSS.HS-LS1-3

Front

What is geotropism?

Back

Geotropism is a plant's growth response to gravity, where roots grow downward and stems grow upward.

Front

What is the function of motor nerves?

Back

Motor nerves transmit signals from the CNS to muscles, enabling movement.