ANSWERS
Bone - ANSWER -Constantly Being reorganized
Synthesize blood and immune cells
Store calcium, phosphate, and lipids
Dynamic tissue that is made and broken down according to need
Provides structural, protective and metabolic needs
Bones: 4 Major components - ANSWER -Long
Short
Flat
Irregular
Bones: Long - ANSWER -Have long compact hollow shafts containing marrow
Ends are usually made of spongy bone with air pockets
ex: jumpers, ulna, radius, femur, tibia and fibula
Bones: short - ANSWER -wider than they are long
ex: toes (metatarsals) and collarbone (clavicle)
Bones: flat - ANSWER -Not hollow but contain marrow
ex: scapula, ribs, and sternum
Bones: Irregular - ANSWER -Have Non-symmetrical shapes
,ex: skull, knee and elbows
Inference - ANSWER -A conclusion one can draw from the presented details.
anatomical position - ANSWER -a standard position in which the body is facing forward, the feet
are parallel to each other, and the arms are at the sides with the palms facing forward
Cells - ANSWER -The basic unit of structure and function in all living things
Cellular functions - ANSWER -Processes that include growth, metabolism, replication, protein
synthesis, and movement
Directional terminology - ANSWER -Words used to explain relationships of locations of anatomical
elements (distal, posterior, medial, etc.)
organ system - ANSWER -A group of organs that work together in performing vital body functions.
Organelle - ANSWER -specialized structure that performs important cellular functions within a
eukaryotic cell
Organ - ANSWER -A collection of tissues that carry out a specialized function of the body
Reference Planes - ANSWER -Planes dividing the body to describe locations
(ex: sagittal, coronal, and transverse)
Tissue - ANSWER -A group of similar cells that perform a specific function.
,Eukaryotic cells - ANSWER -Contain a nucleus and other organelles that are bound by membranes.
What does the respiratory system do? - ANSWER -Brings in oxygen to go into the cells, and picks up
carbon dioxide to be removed from the bodyguard
What are the 7 parts of the respiratory system? - ANSWER -1. Nose
2. Pharynx
3. Larynx (voice box)
4. Trachea (windpipe)
5. Bronchi
6. Bronchioles
7. Alveoli
What are alveoli surrounded by to allow the exchange of O2 and CO2? - ANSWER -Capillaries
What is cilia? - ANSWER -Tiny hairs in the nose and trachea that wave particles up away and out
What is mucus? - ANSWER -Something that keeps the air warm and moist but also traps particles
What does hemoglobin do? - ANSWER -Carries oxygen through the blood
What is pleura? - ANSWER -Sacs that surround the lungs
What is the diaphragm? - ANSWER -The muscle at the bottom of the thoracic cavity
What happens during inhalation? - ANSWER -Diaphragm moves down (contracts), rib cage rises,
, volume of chest cavity increases, air moves in to fill the space
What happens during exhalation? - ANSWER -Diaphragm moves up (relaxes), rib cage lowers, space
becomes smaller, air is pushed out of lungs
What does the medulla oblongata do? - ANSWER -Controls breathing
What is chronic bronchitis? - ANSWER -Bronchi swell and become clogged with mucus
What is emphysema? - ANSWER -Tissues in lungs lose elasticity; tissues can't enough O2 or get rid
of enough CO2
What is lung cancer? - ANSWER -Cells that do not stop reproducing; can spread to other locations
because lungs are so central and connected to so much; survival is generally less then 5 years
from diagnosis
What is elastic recoil? - ANSWER -The ability for the alveoli to get filled with air then return to
their normal shape once the air is released
What is a spirometer? - ANSWER -an instrument for measuring the air capacity of the lungs
What is tidal volume? - ANSWER -The amount of air taken in and breathed out in a typical breath
What is supplemental volume? - ANSWER -The xtra air that can be inhaled or exhaled with a deep
breath
What is reserve amount? - ANSWER -The amount of extra air you can breathe out when you force
air out of your lungs