Blood quiz 1 Flashcards
1
Q
Define blood
A
A tissue that is composed of cells suspended in a liquid which is mostly water.
2
Q
5 functions of blood
A
- Fights invasions by bacteria and viruses
- Regulate body temp.
- clots if the skin is broken to prevent excessive blood loss
- transports substances
- reproduction (the erection of the penis)
3
Q
Plasma
A
a sticky, yellowish liquid
90% water and 10% substances
4
Q
Blood cells are made in the
A
bone marrow
5
Q
Red blood cells
A
- contain red pigment hemoglobin that gives blood that color
- NO nuclei
6
Q
White blood cells
A
Lymphocytes and Phagocytes
- the nucleus of each type has a characteristic shape.
7
Q
Patelets
A
are fragments of cells made in the bone marrow
- 3 micrometer
- important for blood clotting
8
Q
Red blood cells are also called
A
erythrocytes
9
Q
How long can red blood cells not survive?
A
more than 3 months
10
Q
Red blood cells are destroyed where ?
A
Liver or the spleen
11
Q
oxyhaem
A
a dark red unstable compound
