The upper respiratory system includes:
nose, mouth, nasal cavity, pharynx, larynx
The lower respiratory system includes:
trachea, lungs, bronchial tree
How many major organ systems are there?
11
How long does the cell cycle take?
24 hours
What are the lungs surrounded by?
pleural membrane
Which gland is responsible for regulation of calcium levels?
a. The parathyroid glands
b. The pituitary gland
c. The adrenal glands
d. The pancreas
a. the parathyroid glands
5 functions of the respiratory system
1. supply the body w/ oxygen and get rid of carbon dioxide
2. filters air
3. responsible for speech
4. sense of smell
5. maintain acid-base homeostasis
, What contracts during the breathing process?
a. lungs and diaphragm
b. intercostal muscles and lungs
c. diaphragm and intercostal muscles
d. lungs and alveoli
c. diaphragm and intercostal muscles
What expands during inspiration/inhalation?
the ribs
What increases in size during inspiration/inhalation?
chest cavity
What part of the brain stem controls the breathing process?
a. pons
b. hypothalamus
c. medulla oblongata
d. midbrain
c. medulla oblongata
3 components of the circulatory system
1. blood
2. heart
3. blood vessels
Three layers of the walls of all blood vessels (except the capillaries)
1. innermost tunica
2. tunica media
3. tunica adventitia
What are the largest vessels in the arterial system?
a. muscular arteries
b. elastic arteries
c. arterioles
d. veins
b. elastic arteries
What carries blood back to the heart?
Veins
Which blood cells transport oxygen to the cells?