Transcript How are veins and lymph vessels similar?

How are veins and lymph
vessels similar?
a) Both contain valves
b) Both return blood to the heart
c) Both have a large amount of
elastic tissue
d) Both carry blood with a low
oxygen concentration
What substances are absorbed by
the lacteals?
a)
b)
c)
d)
e)
Carbohydrates
Fats
Nucleic acids
Amino acids
Proteins
Where is blood velocity the
slowest?
a)
b)
c)
d)
e)
Vein
Venule
Artery
Arteriole
Capillary
Where does lymph enter the
circulatory system?
a)
b)
c)
d)
e)
Hepatic vein
Hepatic portal vein
Subclavian vein
Jugular vein
Coronary vein
Blood enters the iliac artery from
which of the following vessels?
a)
b)
c)
d)
e)
Aorta
Renal artery
Carotid artery
Coronary artery
Femoral artery
Which would result in the greatest
diffusion of particles across a
membrane?
a)
b)
c)
d)
Small particles at 10 C
Large particles at 20 C
Large particles at 30 C
Small particles at 40 C
What causes materials to move
from the blood to the tissues at the
arterial end of the capillary?
a)
b)
c)
d)
Osmosis
Diffusion
Active transport
Blood pressure
What is the last chamber of the
heart that blood passes through on
its way to the systemic circuit?
a)
b)
c)
d)
Left atrium
Right atrium
Left ventricle
Right ventricle
Which heart structure is not
functioning properly if an electrical
device is needed to stimulate the
atria to contract?
a)
b)
c)
d)
e)
Septum
SA node
AV node
Chordae tendineae
Purkinje ribers
What is the function of the Purkinje
fibers?
a) To cause atrial contraction
b) To act as a natural pacemaker and
initiate the heartbeat
c) To prevent the valves from inverting
during heartbeat
d) To conduct nerve impulses from the SA
node to the AV node
e) To conduct nerve impulses from the AV
node to the ventricles
Where are the pleural membranes
found?
a)
b)
c)
d)
In both bronchi
Inside the alveoli
Surrounding all cells
Lining the thoracic cavity
Which structure has rings of
cartilage?
a)
b)
c)
d)
e)
Trachea
Oral cavity
Epiglottis
Diaphragm
Alveolus
What circulatory pathway carries
blood to the lungs?
a)
b)
c)
d)
Renal
Hepatic
Systemic
Pulmonary
What structure takes up tissue
fluids not absorbed by the blood
capillaries?
a)
b)
c)
d)
Lymph vessel
Subclavian vein
Hepatic portal vein
Posterior vena cava
What heart structure prevents the
AV valves from inverting ?
a)
b)
c)
d)
SA node
AV node
Purkinje fibers
Chordae tendineae
Breathing rate is controlled by
which of the following?
a)
b)
c)
d)
The alveoli
The cerebral cortex
The anterior pituitary
The medulla oblongata
What condition initiates exhalation?
a)
b)
c)
d)
High oxygen levels in the blood
Low air pressure in the thoracic cavity
Low carbon dioxide levels in the blood
Increased stimulation of the stretch
receptors of the alveoli
Which of the following are
characteristics of the blood vessel
that carries blood from the
arterioles to the venules?
a)
b)
c)
d)
Thin walls with valves
Thin walls, one cell layer thick
Thick walls to withstand pressure
A thick middle layer of elastic tissue
What would result if the SA node
received increased stimulation by
the sympathetic nervous system?
a) Heart rate and blood pressure would
decrease
b) Mesenteric arteries would dilate
c) Blood pressure would increase
d) Production of red blood cells would
increase
Which of the following describes
the location and function of valves
found in the circulatory system?
a) Found in capillary beds and regulate the
diameter of venules
b) Found in blood vessels that have low blood
pressure and prevent backflow of blood in the
heart
c) Found in blood vessels where blood is moving
the fastest and control blood entering the
capillary bed
d) Found in blood vessels carrying blood away
from the heart and limit high blood pressure in
tissues
What would occur if the cilia in the
respiratory tract were damaged?
a)
b)
c)
d)
Mucus would accumulate
The larynx would stop functioning
Air would become trapped in the lungs
The diaphragm would increase thoracic
volume
Which of the following occurs
during internal respiration?
a)
b)
c)
d)
ATP is produced
Oxygen enters the blood stream
Carbon dioxide leaves the blood stream
Bicarbonate ions are produced
What is transported in the blood
as carbaminohemoglobin?
a)
b)
c)
d)
Oxygen
Amino acids
Carbon dioxide
Hydrogen ions
Which of the following occurs
during inhalation?
a)
b)
c)
d)
The rib muscles relax
The diaphragm contracts
The diaphragm becomes dome shaped
Pressure in the thoracic cavity increases
How does the formation of reduced
hemoglobin have a buffering effect
in the body?
a) It absorbs oxygen in the lungs
b) It forms carbaminohemoglobin in the
blood
c) It forms carbaminohemoglobin in the
tissue fluids
d) It reduces the concentration of hydrogen
ions in the blood
When the liver is unable to break
down a red blood cell, which of the
following would be produced in
decreased amounts?
a)
b)
c)
d)
Maltose
Peptides
Fat droplets
Nucleotides
What blood vessel supplies blood
directly to the heart?
a)
b)
c)
d)
e)
Aorta
Carotid artery
Coronary artery
Pulmonary artery
Jugular vein
Which vessel contains blood with
the lowest concentration of carbon
dioxide?
a)
b)
c)
d)
Aorta
Carotid artery
Pulmonary vein
Inferior vena cava
What structure does blood flow
through immediately after leaving
the right ventricle?
a)
b)
c)
d)
Aorta
AV valve
Pulmonary vein
Pulmonary trunk