Table of Contents
- 1 What is a change that brings a response?
- 2 What is the ability to sense and react to change inside or outside of a body?
- 3 What is the word for a change in the environment?
- 4 What is a internal response?
- 5 How does the nervous system respond to external stimuli?
- 6 Which is part of the body detects environmental changes?
What is a change that brings a response?
Receptors. Receptors are groups of specialised cells. They detect a change in the environment (stimulus). In the nervous system this leads to an electrical impulse being made in response to the stimulus. Sense organs contain groups of receptors that respond to specific stimuli.
What is the ability to sense and react to change inside or outside of a body?
Sensation refers to our ability to detect and sense the internal and external physical qualities of our environment. Our senses include both exteroception (stimuli that occur outside of our body) and interoception (stimuli occurring inside of our bodies).
What is the word for an organ or tissue that brings about the response in a reflex action?
Effector cells are muscle, organ, or gland that acts in response to a stimulus. It responds to stimulation by the motor neuron and produces a behavioral response called a reflex.
Which system coordinates the body’s response to changes in its internal and external environment?
Functions of the eleven major body systems
| Question | Answer |
|---|---|
| Recognizes and coordinates the body’s response to changes in its internal and external environments | The Nervous System |
| Serves as a barrier against infection and injury; regulates body temperature; protects against ultraviolet radiation | The Integumentary System |
What is the word for a change in the environment?
vb. 1 alter, convert, diversify, fluctuate, metamorphose, moderate, modify, mutate, reform, remodel, reorganize, restyle, shift, transform, transmute, vacillate, vary, veer.
What is a internal response?
Internal stimuli are changes to the conditions inside the body. This has left us with some incredible responses to internal and external stimuli that keep us safe and healthy.
How does the body respond to external changes?
Body structures that can detect environmental changes are called receptors. Parts of the body that can make responses are called effectors. The maintenance of a constant internal environment by the body is called homeostasis. This is the regulation of body temperature so that it stays at a set point of 37°C.
How does the nervous system respond to changes in the environment?
The nervous system allows an organism to respond quickly to changes in the internal or external environment. The responses to the stimuli are short-lasting. Receptors are groups of specialised cells.
How does the nervous system respond to external stimuli?
Effectors include muscles and glands, and so responses can include muscle contractions or hormone release. The nervous system allows an organism to respond quickly to changes in the internal or external environment. The responses to the stimuli are short-lasting. Receptors are groups of specialised cells.
Which is part of the body detects environmental changes?
Body structures that can detect environmental changes are called receptors. Parts of the body that can make responses are called effectors. Examples of stimuli that can be detected by the human nervous system: