Skeletal System Flashcards
What are the functions of the skeleton
Shape Support Protection Movement Blood cell production
What are the four types of bones
Flat bone
Long bone
Short bone
Irregular bone
What is the definition of a joint
A joint is the connection point between two bones where movement occurs
What are the three types of joints
Synovial - freely moveable
Slightly moveable
Immovable
What are the six types of synovial joints
Hinge joint Ball and socket joint Condyloid joint Pivot joint Saddle joint Gliding joint
What is a hinge joint and an example
A hinge joint is when the joint acts like a door hinge allowing the joint to have flexion and extension
Example - elbow or knee
What is a saddle joint and an example
Where the thumb meets the wrist the bones it fits up against each other like a saddle fits a horse
Example - thumb
What is a pivot joint and an example
A pivot joint is when the vertebrae in your neck allows you to move your head side to side
What is a glide joint and an example
A gliding joint is when it can move in any direction
Example - bones in hand - carpals and metacarpals
What is a Condyloid joint and an example
It is a joint that allows circular movement. In this joint the ball rests against the end of a bone rather than inside the socket
Example - carpals of the wrist resting against radius bone of the forearm
What is a ball and socket joint and an example
A ball and socket joint is when one bone that ends in a ball shape sits in a socket shaped bone. It allows a wide range of movements
Example - hip or shoulder
What are the three types of connective tissue
Tendons
Ligaments
Cartilage
What does a tendon hold together and it which area of the body
It joins muscles to bone
Example - biceps to humerous
What does cartilage protect and where is it found in the body
It protects the end of a joint, it provides protection and shock absorption
Example - ear
What does a ligament join together and where is it found in the body
It joins bone to bone
Example - femur