QUESTIONS WITH FULL SOLUTION GRADED
A+
◉ What do the nose and mouth do in the respiratory system?
Answer: Takes in the air so it can travel through the nasal cavity,
pharynx and larynx.
◉ What does the trachea do in the respiratory system? Answer: Air
travels through the trachea from the nose and mouth to reach the
lungs.
◉ What do the lungs do in the respiratory system? Answer: Contains
alveoli which is where the gas exchanges.
Ventilation...
Rest: 10 liters per minute
Minute 1 of exercise: 45 liters per minute
After 2 minutes: 220 liters per minute
◉ What do the bronchi do in the respiratory system? Answer: The
trachea splits into 2 primary bronchi to enter the lungs, then split
into secondary and tertiary bronchi, then splits into bronchiole.
,◉ What do the alveoli do in the respiratory system? Answer: At the
end of the bronchiole. Their walls are elastic so they can expand
when they fill with air. Alveoli are surrounded by capillaries. Oxygen
moves from the alveoli to the capillaries and carbon dioxyde moves
from capillaries to alveoli. This is called diffusion.
◉ What are the 2 parts of the skeleton? Answer: Axial skeleton
Appendicular skeleton
◉ What is the axial skeleton? Answer: Made of 80 bones
Includes the skull, ribs, spine and sternum
Protect vital organs such as the heart
◉ What is the appendicular skeleton? Answer: Made of 126 bones
Includes the shoulder, limbs and pelvis
◉ What are the 4 types of bones? Answer: Long
Short
Flat
Irregular
,◉ What is the skull? Answer: Protects brain
Flat bone
Part of axial skeleton
◉ What are the 3 types of joints? Answer: Fibrous joints
Cartilaginous joints
Synovial joints
◉ What is a fibrous joints? Answer: Connects bones to fibrous tissue
Allow minimal movement
Ex: skull, pelvis, radius and ulna together
◉ What is a cartilaginous joint? Answer: Separate bones by cartilage
Allow little to no movement
Ex: between ribs and sternum, between vertebrae
◉ What is a synovial joint? Answer: Freely movable (PTS work with
these joints the most)
Have cartilage on the surface to prevent bone friction and absorb
shock. Ex: knee, elbow, wrist and ankle
◉ What are the 6 types of synovial joints? Answer: Hinge joint
, Ball and socket joint
Pivot joint
Condyloid joint
Saddle joint
Gliding joint
◉ What is the sternum? Answer: Protects vital organs
Flat bone
Part of axial skeleton
◉ What are the ribs? Answer: Protect vital organs
Flat bone
Axial skeleton
◉ What are the vertebrae? Answer: Provide support and limited
movement for the torso
Irregular bone
Axial skeleton
◉ What is the pelvis? Answer: Connects the legs
Irregular bone
Appendicular skeleton