What tissue is made up of cells that react to stimuli?

What tissue is made up of cells that react to stimuli?

Nervous tissue is made up of nerve cells that sense stimuli and transmit signals. Nervous tissue is found in nerves, the spinal cord, and the brain.

Does nervous tissue respond to stimuli?

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.

Sense organ	Stimuli receptors respond to
Eye	Light
Ear	Sound, position of head

What fibers are in nervous tissue?

Myelinated fibers make up the white matter in the CNS, while cell bodies and unmyelinated fibers make the gray matter. The unmyelinated regions between the myelin segments are called the nodes of Ranvier. In the peripheral nervous system, the myelin is produced by Schwann cells.

What type of stimulus does nerve tissue respond to?

Nervous-system response When a neuron is stimulated by an excitatory impulse, neuronal dendrites are bound by neurotransmitters which cause the cell to become permeable to a specific type of ion; the type of neurotransmitter determines to which ion the neurotransmitter will become permeable.

How does your body respond to stimuli?

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.

How the stimulus flows in nerve tissue?

Information flows through a neuron from the dendrites, across the cell body, and down the axon. This gives the neuron a polarity—meaning that information flows in this one direction.

What cells tissues and organs make up the nervous system?

Nervous tissue is composed of neurons and supporting cells called neuroglia, or ” glial cells.” There are six types of neuroglia. Four are found in the central nervous system, while two are found in the peripheral nervous system.

What neurons are specialized to detect stimuli?

Sensory neurons that detect stimuli are of this type. Functionally, neurons are classified into three categories: sensory neurons, interneurons, or motor neurons. Sensory neurons, also called afferent neurons, carry impulses from sensory receptors to the the CNS.

What receptors respond to stimuli in body?

Sensory receptors respond to stimuli. They can be classified by their location, the type of stimulus they detect or by their structural complexity. 1. Free dendritic endings – abundant in epithelial tissue.

What are the functions of connective tissue in muscles?

Associated connective tissue binds muscle fibres into fascicles or bundles, and these associated connective tissues also convey nerve fibres and blood vessels (capillaries) to the muscle cells. Muscle tissue has four main properties: Extensibility – ability of a muscle to be stretched without tearing;

What is the function of smooth muscle tissue?

Smooth muscle tissue contraction is responsible for involuntary movements in the internal organs. It forms the contractile component of the digestive, urinary, and reproductive systems as well as the airways and blood vessels. Each cell is spindle shaped with a single nucleus and no visible striations (Figure 4.4.1 – Muscle Tissue).

Which is a type of nervous tissue that supports neurons?

Another type of nervous tissue, microglia, supports neurons and acts to engulf bacterial and cellular debri, while astrocytes provide nutrients and hormones to neurons. Epithelial cells form continuous layers of _______ packed cells.

What are the properties of muscle cells that allow them to move?

Muscle tissue is characterized by properties that allow movement. Muscle cells are excitable; they respond to a stimulus. They are contractile, meaning they can shorten and generate a pulling force. When attached between two movable objects, such as two bones, contraction of the muscles cause the bones to move.