animal tissues

Question 1

blood(4)

Answer 1

red blood cells
white blood cells
platelets
plasma

Question 2

red blood cells (8)

Answer 2

oval shape, contains haemoglobin which become oxihaemoglobin with oxygen, red in colour. Smaller, formed in bone marrow, flexible, no nucleus, biconcave

Question 3

white blood cells (6)

Answer 3

irregularly shaped, has a nucleus, used to protect body against infection and disease, formed in red marrow and lymph glands and spleen, has a nucleus, larger than red blood cells

Question 4

platelets (5)

Answer 4

small, irregularly shaped discs, no nucleus, result from break up of larger cells, clot the blood

Question 5

plasma (2)

Answer 5

liquid part of the blood, the transporter (urea, nutrients etc…) regulated temperature

Question 6

bone (3)

Answer 6

made of calcium, phosphate and collagen

Question 7

spongy bone (5)

Answer 7

light bone, inside of bony structure, has a system of bone platelets (trabeculae), openings filled with fatty deposits, blood vessels and other tissues forming bone marrow

Question 8

compact bone (3)

Answer 8

dense bone
surface of boney structure
more compact

Question 9

nervous system (5)

Answer 9

cells called neurons

axons transmit impulses away from cell body
dendrites transmit impulses to cell body

axon is enclosed by a schwann cell (produce myelin sheath)
a synapse is the point at which a nerve impulse is transmitted

Question 10

motor neuron(5)

Answer 10

dendrite (cell body)
nucleus (in dendrite)
axon hillock (joins dendrite to axon)
Schwann cell (many create myelin sheath, cover exon)
terminal branches (connect to axon on other side)

Question 11

muscles (2)

Answer 11

contract and relax, 2 groups - voluntary and involuntary.

Question 12

smooth(3)

Answer 12

location - walls of blood vessels
function - controls slow, involuntary movements. involved in peristalsis
structure - elongates (spindle), single central nucleus, not striated, contains myosin and actin

Question 13

cardiac(3)

Answer 13

location - heart
function - cause beating of heart (involuntary)
structure - rectangular fibers (branched), 1 or 2 centrally positions nuclei, striated, have intercalated discs

Question 14

skeletal(3)

Answer 14

location - our bones and tendons
function - responsible for voluntary movements
structure - striated, nucleus towards edge of cell (space for many mitochondria)

Question 15

cartilage (3)

Answer 15

made of inelastic collagen fibers and elastic fibers

there are no nerves or blood vessels in the matrix

Question 16

hyaline(3)

Answer 16

prevents friction, end of bones, between ribs and sternum

Question 17

fibrocartilage (4)

Answer 17

enlarged joint sockets and protects tendons where they have to slide over the bone, between pubic bones, at shoulder and hip, invertebral discs and edges of sockets of ball

Question 18

elastic cartilage(3)

Answer 18

external ear, epiglottis, eustachian tubes

Question 19

epithelium(1)

Answer 19

covers the surface of the body

Question 20

squamous epithelium(4)

Answer 20

thin, large flattened irregularly shaped. Allows for nutrients and gasses to diffuse easily, in Oesophagus.

Question 21

cuboidal epithelium (4)

Answer 21

tightly packed, cube shaped with large central nuclei. Great for secretion and absorption of substances, in lining of glands.

Question 22

columnar epithelium (5)

Answer 22

elongated, column shaped. Secretes mucus, absorbs food; protects and supports underlying tissue, In digestive tract

Question 23

ciliated columnar epithelium (5)

Answer 23

has fine hair on the column shape. Beats mucus along air passage way, cilia also move ova in oviducts, helps move cerebrospinal fluid along central canal of spinal cord. In nose.