Functions of Different Tissues

Question 1

Define the term Tissue

Answer 1

A group of specialised cells that are similar in structure and function

Question 2

Define the term Organ

Answer 2

A group of tissues in a living organism that have been adapted to perform s specific function

Question 3

Types of tissues

Answer 3

1. Epithelial
2. Connective
3. Muscle- smooth, cardiac & skeletal
4. Nerve

Question 4

Functions of Epithelial Tissue

Answer 4

Made of layers of cells that cover the surfaces of the body that come into contact with the exterior world, line internal cavities and form glands

Main functions: protection, secretion, absorption and filtration.

Question 5

Functions of Connective Tissue

Answer 5

Binds the cells and organs of the body together

Provides protection, support, and integration of the body

They support and connect other tissues; from the connective tissue sheath that surrounds muscle cells to the tendons that attach muscles to bones, and to the skeleton that supports the positions of the body.

Defend the body from microorganisms that enter the body. Transport of fluid, nutrients, waste, and chemical messengers is ensured by specialized fluid connective tissues, such as blood and lymph

Adipose cells store surplus energy in the form of fat and contribute to the thermal insulation of the body.

Question 6

Name the 3 types of muscle tissue

Answer 6

a) Cardiac
b) Skeletal
c) Smooth

Question 7

What is Skeletal tissue?

Answer 7

Voluntary type of muscle tissue, that is used in the contraction of skeletal parts. Maintain posture, cause movement, resist gravity, keeps the body upright and balanced through small adjustments.

Maintain homeostasis through generating heat. Through the breakdown of ATP

Protects internal organs e.g abdominal and pelvic organs.

Keeps joints stable, preventing skeletal structure damage and deformation.

https://opentextbc.ca/anatomyandphysiology/chapter/10-2-skeletal-muscle/

Question 8

What is Smooth tissue?

Answer 8

Involuntary type of muscle tissue

Found in walls of internal organs, blood vessels, in the eye such as the iris and skin where it can cause the hairs to become erect.

Doesn’t have any striations hence called smooth

https://opentextbc.ca/anatomyandphysiology/chapter/10-8-smooth-muscle/

Question 9

What is Cardiac tissue?

Answer 9

Involuntary type of muscle tissue

Striated

Different from skeletal muscle as it shorter muscle fibres, has one nucleus in the centre region of the cell, branched extensively and are connected to each other at their ends by intercalated discs (which allow cardiac muscle cells to contract in a wave-like pattern).

Found in the walls of the heart

Question 10

Name the functions of Nerve Tissue

Answer 10

Composed of neurons (responsible for communication through electrical signals) and glial cells (are supporting cells, maintaining the environment around the neurons).

It receives stimuli and transmits information through electrical impulses from one region of the body to another.

They are long and string like