Module 3A: Skeletal System Flashcards
(119 cards)
what are the three types of cartilage in the skeleton?
- hyaline
- elastic
- fibrocartilage
is ALL cartilage resilient?
yes, it resists compression
relative to bone, does cartilage have higher or lower levels of water and minerals?
high level of water and low level of minerals
- this gives its resiliency towards compressive forces
what does hyaline cartilage do for us?
provides support with flexibility and resilience
which cartilage is the most abundant of the skeletal cartilages?
hyaline cartilage
the different types of cartilage have different amounts of?
water and fiber concentration
- this dictates the behavior and responses they have
what dictates the behaviors and responses that cartilage has?
water and fiber concentration
what are the locations of hyaline cartilage on the skeletal system?
- articular
- costal
- respiratory
- nasal
where is our hyaline articular cartilage?
lying within the joints
where is our hyaline costal cartilage?
where your ribs meet your sternum
where is our hyaline respiratory cartilage?
in our larynx, in our voice box
- all the air that comes in and out is coming through cartilage
the respiratory system is based on what?
cartilage, NOT bone
- specifically- HYALINE cartilage
where is our hyaline nasal cartilage?
the nasal area; the nose
- what we can move in our nose is cartilage
which cartilage has more elastic fibers, elastic or hyaline?
elastic
which cartilage is better able to stand up to repeated bending?
elastic
where can elastic cartilage NOT be used? why?
in places that require structural function. because it is not tough enough
what are the locations of elastic cartilage?
- external ear
- epiglottis (peaks out behind the larynx)
what does your epiglottis do
lifts when you breath in
lowers when you swallow something
- blocks trachea when swallowing so it goes down into the esophagus instead of chocking
which cartilage is more prevalent in the body, fibrocartilage or elastic?
fibrocartilage, but still less than hyaline
what is the strongest cartilage? why?
fibrocartilage because it has a lot of thick collagen fibers
- has great tensile strength
fibrocartilage is going to be located in sites that are?
subject to both pressure and stretch
how are the chondrocytes and the collagen fibers arranged in fibrocartilage?
in parallel rows and this gives it its strength and its ability to resist that compression and pressure
where is fibrocartilage located?
- menisci of knee
- intervertebral disc
- symphysis pubis
when we take a step, about how much weight are we putting up through the limb?
1.5x our body weight