2 Flashcards
What is the hydrophilic head?
Water loving and polar
What is the hydrophobic tail?
Water hating and non polar
Plasma membranes can also be called
Cell membranes and they cover every cell, including most organelles
Purpose of the skeleton-5
- Form the body
- protect the organs
- Structure
- Movement
- Posture
Functions of the skeleton 5
- support
- protection
- movement
- blood production
- storage
what bones make up the head and trunk of the body?
The axial skeleton
What consists of limbs that support the trunk (appendage bones)
The appendicular skeleton
Fibrous joints
joints fixed by fibrous connective tissue that allows no movement
Cartilaginous joint
joints held together cartilage and allows slight movement
Synovial joint
joints that allow a wide range of movement
Hyaline cartilage
Reduces friction and acts as a shock absorber
Ligament
Joins bone to bone and stabilizes the joint
synovial membrane
Produces synovial fluid
Fibrous joint capsule
an envelope around the synovial joint offering protection
Tendon
Joins muscle to the bones and enables movement
Synovial fluid
Lubricates the joint and provides nutrition for the hyaline cartilage
Flexion
Reduces the angle between two bones
Extension
Increases the angle between two bones
abduction
Moves away from the body
adduction
moves back toward the body
Rotation
Joint can twist on its own axis
Gliding
Surface of the joint slides over one another
Protraction
Movement of the limb forward away from the body
Retraction
Movement of the limb towards the body
Cartilage
A specialized connective tissue which is rigid but flexible and resilient
Ligament
A short band of tough, flexible fibrous connective tissue
Tendons
they are connective tissues that transmit the mechanical force of muscle contraction to the bone
