Lectures 1-4 Flashcards
What is anatomical position
Upright
Face forward
Feet forward
Palms face forward
What is homeostasis
The process by which living organisms maintain their internal environment despite fluctuations in external environment
Top (or towards the top) in anatomical terms
Cranial or cephalic
Behind in anatomical terms
Posterior or dorsal
Infront in anatomical terms
Anterior or ventral
Higher up in anatomical terms
Superior
Lower down in anatomical terms
Inferior
Toward the midline in anatomical terms
Medial
Further up or down the midline in anatomical terms
Distal
Further to the right or left in the midline in anatomical terms
Lateral
Closer in anatomical terms
Proximal
Deep is _________ to/from the surface
Further
Superficial is __________ to/from the surface
Closer
What is the sagittal plane
Vertical midline of the body. Splits the body into a left and right side
What is the coronal plane
Divides the body into a front and back side
What is the transverse plane
Divides the body into a top and bottom half
What movement occurs in the sagittal plane
Front and back movements
Flexion and extension
What movement occurs in the coronal plane
Side to side movements
Abduction and adduction
What movement occurs in the transverse plane
Rotating movements
Whats the movement where your palms face anterior called?
Supination
Whats the movement where your palms face posterior called
Pronation
Ankle flexion
Dorsiflexion
Dorsiflexion
Ankle flexion
Ankle extension
Plantarflexion
Plantarflexion
Ankle extension
Bottom (or towards the bottom) in anatomical terms
caudal
Sole of foot faces towards midline
Inversion
Inversion
Sole of foot faces towards midline
When the controlled variable moves too far from set point and the body responds by doing something to bring the variable back to ‘normal’
Feedback
Feedback
When the controlled variable moves too far from set point and the body responds by doing something to bring the variable back to ‘normal’
When there is anticipation of an event that will change the controlled variable so the body does something to minimise the effect
Feedforward
Feedforward
When there is anticipation of an event that will change the controlled variable so the body does something to minimise the effect
What are the functions of a skeleton
- Support
- Movement
- Protection
- Storage
- Red blood cell formation (red marrow)
- Support
- Movement
- Protection
- Storage
- Red blood cell formation (red marrow)
What are the functions of a skeleton
Compact bone
- good at transmitting force down one direction
- Often found down the shaft of weight bearing bones
- good at transmitting force down one direction
- Often found down the shaft of weight bearing bones
Compact bone
Cancellous bone
- Often found at the end of limb bones
- good at taking force from multiple directions and directing into a straight force by the time it gets down to the shaft
- Often found at the end of limb bones
- good at taking force from multiple directions and directing into a straight force by the time it gets down to the shaft
Cancellous bone
What are the bone classes
- Long bones
- Short bones
- Flat bones
- Irregular bones
Ends of the bone
Epiphysis
Epiphysis
Ends of the bone
Where the red marrow is for forming red blood cells
The medullary cavity
Long bones
- Longer than they are wide
- Act as levers for movement
- Thicker compact bone
- Usually limb bones
Short bones
- Close to equal width and length
- Mostly made of cancellous bone, but thin compact bone portion on the outside
- Good at weight bearing from multiple directions
Flat bones
- Function is muscle attachment. Flat surfaces are great for muscle attachment due to large surface area for muscle to attach to
- They’re made of thin plates of compact bone with cancellous bone in the middle
Irregular bones
- Not long, round or square, just cancellous or flat
- Often have foramina (holes) used to allow blood vessels to go through
What are the two divisions of the skeleton?
Axial skeleton
Appendicular skeleton
What is the purpose of the axial skeleton
Bones of the core
Protection of vital organs
What is the purpose of the appendicular skeleton
Bones of the limbs
Most important for movement
What are the major bones if the skull (axial skeleton) and their functions
Cranium (vault)
encloses the brain Muscle attachments
Facial bones
Protect and support sensory organs