tissues

Question 1

define tissue

Answer 1

a group of cells that are similar in structure and work together to carry out a particular task.

Question 2

state the 4 main types of tissue

Answer 2

epithelial, muscular, connective and nervous

Question 3

describe epithelial tissue

Answer 3

tissue that covers/lines organs, etc.

the cells are closely joined (side by side)

Question 4

examples of epithelial tissue

Answer 4

outer layer of skin

inner/outer organ lining

Question 5

describe connective tissue

Answer 5

supports/holds body parts together

cells are far apart (matrix between them- non cellular material)

Question 6

examples of connective tissue

Answer 6

bone, cartilage, tendons, ligaments, blood

Question 7

describe nervous tissue

Answer 7

made up of specialised nerve cells (neurons), carries messages all around body via projections

Question 8

examples of nervous tissue

Answer 8

the brain, spinal cord and nerves

Question 9

3 types of muscular tissue

Answer 9

skeletal, smooth, cardiac

Question 10

examples of skeletal tissue

Answer 10

the muscles you can feel in your arms and legs.

Question 11

describe skeletal tissue

Answer 11

has striations (stripes), multiple nuclei, cylindrical shape, makes up the muscle attached to the bone, voluntary muscles.

Question 12

examples of smooth tissue

Answer 12

stomach walls, walls of intestines, walls of blood vessels, uterus.

Question 13

describe smooth tissue

Answer 13

no striations, involuntary, cells are flat and side by side.

Question 14

examples of cardiac tissue

Answer 14

the heart

Question 15

describe cardiac tissue

Answer 15

makes up most of the heart, involuntary, pumps blood, intercalated discs divide cells.

Question 16

what is an organ

Answer 16

body structures that are made up of tissue types that work together to carry out a task.

e.g. the heart pumps blood around the body

Question 17

define a system

Answer 17

a group of organs that work together to carry out a particular task.

e.g. the circulatory system includes vessels and the heart to pump blood around the body.

Question 18

define an organism

Answer 18

all body systems work together to meet the needs of a living and functioning being.

e.g. a human

Question 19

what is the cell theory

Answer 19

all organisms are made of cells which are the basic units of life that arise from pre existing cells

Question 20

organisational structure of the body

Answer 20

1. cells
2. tissues (epithelial)
3. organs (heart)
4. systems (circulatory)
5. organism (humans)