Glossary of BIO 202 lab prac 2
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- What are the three parts of an artery or vein?
- tunica intima
- What is the structural difference between a capillary and a vein?
- capillary only has tunica intima
- What are the differences between artery and vein under a microscope?
- artery is thicker and more round
vein is thin and irregular
- What is the function of an artery
- carries oxygenated blood from the heart to the body
- What is the function of a vein?
- moves deoxygenated blood to the heart
- What is function of capillary?
- Diffuses nutrients and oxygen into blood stream
- What is the circle of willis?
- it is the cerebral arterial wall
- What is the function of the Circle Of Willis?
- ensures continuous blood flow to the brain
- What four arteries make up the Circle of Willis (cerebral arterial circle)
- basilar artery
posterior cerebral arteries
posterier communicating arteries
anterior communicating artery
- What is the foramen ovale?
- Hole in the interial wall for a fetus
- What is the function of the foramen ovale?
- allows blood to bypass the lungs
- What does the foramen ovale become?
- fossa ovalis
- What is a common artery?
- It will branch into an internal and external vessel
- What does the cartoid artery divide into (3 parts)?
- ophthalamic - blood to eyes
anterior cerebral- blood to brain
- What are the four major paired arteries?
- Renal, kidneys
Suprarenal, adrenal glands
Lumbars, vertebrae, spinal cord, abdominal wall
- What artery and vein pair do NOT have the same name?
- common carotid artery
- What makes up the upper respiratory system?
- nostrils, nasal cavity, paranasal cavities, pharnyx
- What makes up the lower respiratory system?
- larnyx, trachea, bronchi, lungs
- When does the respiratory system go from the abdominal to thoracic?
- at the diaphragm
- What is considered the voice box and where is it located?
- larnyx, hard cartilage on top of trachea
- What cells make up the respiratory system?
- Pseudostratified ciliated columnar epithelium
- What is a goblet cell and what is it's function?
- cell that creates a sticky mucus that covers the ciliated epithelium
- What is the function of the cilia?
- Beat to move the mucus toward the pharnyx where it swallowed
- What are the 3 regions of the pharnyx?
- upper nasopharnyx
- What structure joins the laryngopharnyx to the trachea?
- The larnyx is made of what 3 cartilages?
- thyroid, epiglottis, cricoid,
- What is the difference between vestibular folds and vocal cords?
- Vestibular folds: upper pair of folds that prevent foreign materials from entering glottis and close glottis during coughing and sneezing
Vocal cords: lower pair of folds, to produce sound air is exhaled
- Where is the trachea in comparison to the esophagus?
- Where does gas exchange occur?
- in the pulmonary capillaries in between alveoli
- What is going into the RBC?
- What is leaving the RBC?
- Know the difference between parietal pleura, pleural cavities, and visceral pleura
- pleural cavity- pleural cavities contains the lungs and is lined with serous membrane
parietal pleura: lines thoracic wall
visceral pleura: covers superficial surface of lungs
- What is the purpose of surfactant?
- Secretes oily substance to keep the lungs from sticking together
- What is inspiratory capacity?
- tidal volume plus inspiratory reserve volume (big breath in)
- What is tidal volume?
- normal breath
- What is expiratory reserve capacity?
- breathing out
- residual volume
- the air in our lungs that can't be expelled
- functional residual capacity
- residual and up to normal passive breathing
- What is hyperventilating?
- blowing out lots of carbondioxide and ph is basic
- What is hypoventilating?
- carbondioxide builds up in body and ph becomes acidic
- CO2 production rate is matched to what
- metabolism and respiratory rate
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