Download Starter Qs

Starter Qs
1.
The diagram below shows some blood vessels within muscle tissue of
an athlete. The direction of blood flow is indicated by the arrows.
a)
X = artery/arteriole;
a) Name
the type of bloodY =
capillary
vessels labelled X and Y (1)
b) Name
two glucose,
substances
b)
oxygen,
amino
whichfatty
are atacids,
a higher
acids,
concentration in the blood
glycerol,
vitamins,
at point P than at point S.
minerals
(1)
c) Tissue fluid surrounds the
c) muscle
By the
lymphatic
cells. Some of this
fluid is reabsorbed
into
system
/ lymphatic
the bloodstream. How else
vessels
/ lymphatic
is tissue fluid removed
capillaries
from around /
thelymph.
muscle
cells? (1)
Calculations
CO = HR x SV
A: 5.8/60 = 0.09
B: 6.1/68 = 0.08
C: 7.2/72 = 0.1
D: 7.6/78 = 0.09
ANSWER: C
Calculations
CO = HR x SV
The graph below shows how pulse rate and stroke volume
change with the rate of oxygen uptake
1. What is the
cardiac output
when the
oxygen uptake
is 0.6 L/min ?
2. What is the
cardiac output
when the
oxygen uptake
is 1.6 L/min?
Calculations
CO = HR x SV
The graph below shows how pulse rate and stroke volume
change with the rate of oxygen uptake
1. What is the
cardiac output
when the oxygen
uptake is 0.6
L/min ?
When oxygen uptake =
0.6…
HR = 80 and SV = 120
• BUT we need to change
120 cm3 into L (/1000)
CO = HR x SV
CO = 80 x 0.12
CO = 9.6 L/min
Calculations
CO = HR x SV
The graph below shows how pulse rate and stroke volume
change with the rate of oxygen uptake
1. What is the
cardiac output
when the oxygen
uptake is 1.6 L/min
?
When oxygen uptake =
1.6…
HR = 110 and SV = 150
• BUT we need to change
150 cm3 into L (/1000)
CO = HR x SV
CO = 110 x 0.15
CO = 16.5 L/min
Starter Qs
1.
2.
Quick Check - PPQs…
Starter Qs
1.
2.
The person’s heart beat is: ______ bpm
Starter Qs
For each statement below decide if it is true or false. For
every false statement, correct the underlined word:
1. Another term for the pacemaker is
the atrio-ventricular node
2. The atrio-ventricular node is located
in the right atrium muscular wall
3. During ventricular systole, the
pressure decreases
4. During ventricular systole, the
volume of blood in the heart increases
5. During diastole, the AV valves are
opened.
Sino-atrial node
Junction between
atria and ventricles
Diastole
Decreases