Anatomy & Physiology- Pure Basics Flashcards
What is anatomy?
How the body is
What is physiology?
What the body does
What does the cell membrane do?
Controls the passage of substances moving in & out the cell
What does the ribosome do?
Synthesises proteins from amino acids using an RNA template
What does the Golgi apparatus do?
Packages & stores synthesised proteins
What does SER do?
Synthesises lipids & steroid hormones
What does RER do?
Folds and packages proteins and sends them to the Golgi Apparatus
What is pinocytosis?
A process by which liquid droplets are ingested by living cells
What are neuroglian cells?
They are cells that provide developmental, physiological, and metabolic support for neurons.
What does cartilage do?
It absorbs shock and provides structural support
Why is a RBC concave?
To increase the surface area for oxygen
What shape is a cardiac cell and why?
It is striated (stretched) to allow contraction
What do kidney tubule cells do?
They control water & salt excretion
What are the 4 basic tissue types?
Connective, epithelial, muscle, & nervous
What are the 3 types of muscle tissue?
Skeletal, smooth & cardiac
What does epithelial tissue do?
Often line body cavities
What does connective tissue do?
Binds, supports and protects
What is apoptosis?
Cell suicide
What is necrosis?
Cell damage/disease
Which cells have the longest lifespan?
Muscle and nerve, closely followed by RBC
Which cell was the shortest lifespan?
Gut epithelium, closely followed by platelets
How does aging effects cells?
It slows down mitosis so cells that die aren’t always replaced. Apoptosis can also either stop (forming tumours), or increase ( causing diseases)
What must be kept constant to protect a cell?
Oxygen & Carbon dioxide levels, chemical constitution, temperature and osmotic pressure
What are baroreceptors?
They detect a pressure change in the artery walls
What is the general rule for too high or too low?
Hypo = too low
Hyper = too high
What is negative feedback?
The response of the body is to reverse the original stimulus
What is positive feedback?
The response of the body is to enhance the original stimulus
What detects temperature change in the body?
The skin & hypothalamus
How does the body control blood glucose levels?
An increase is picked up by islet cells in the pancreas which then secrete insulin to reduce levels.
A decrease is defected by islet cells in the pancreas which then secrete glucagon to increase levels.
What is pathophysiology?
The study of how the disease process affects the normal functioning of living organisms
What are pinocytic vesicles?
Pocket like folds in the membrane which allow protein and fut mole cute to enter the cell
What is blood comprised of?
Erythrocytes (RBC), Leukocytes (WBC), plasma and platelets
What does the blood carry?
Oxygen, carbon dioxide, hormones and nutrients
What are the 2 types of leukocytes?
Granulocytes and agranulocytes
What are the types of granulocytes?
Neutrophils, basophils and eosinophils
What are the types of agranulocytes?
Lymphocytes and monocytes
What do neutrophils do?
Kill bacteria
What do eosinophils do?
Kill parasitic worms
What do basophils do?
Attract other WBC’S
What do lymphocytes do?
Fight viruses & tumours
What do monocytes do?
Become macrograges and engulf pathogens
What are microvilli?
Tiny projections that cover the exposed surface of certain types of cell. They greatly increase the surface area, and maximise absorption of nutrients from the small intestine
What happens in the G1 phase?
The cell grows in size and volume
What are the 3 stages of interphase?
G1, S and G2
What happens in the S phase?
The chromosomes replicate, forming two identical copies of DNA
What happens in the G2 phase?
There is further growth and preparation for cell division.
What does superior mean?
At the top
What does anterior mean?
At the front
What does posterior mean?
At the back
What does lateral mean?
On the outside
What does media mean?
Towards the midline of the body?
What does superficial mean?
Nearer the surface
What does proximal mean?
Nearer the trunk or point of origin
What does distal mean?
Further from the trunk or point of origin
What does flexion mean?
Decreasing the angle
What does abduction mean?
Taking the limb away from the body
What does addiction mean?
Taking the structure towards the midline of the body
What is lateral rotation?
External rotation
What is medial rotation?
Internal rotation
What is supine?
Laying down
What are the benefits of skin-to-skin contact?
- Releases endorphins
- Calms and relaxes both
- Regulates baby’s HR and temperature
- Releases oxytocin
What is hypoglycaemia?
Low blood sugar
What is hypoxia?
Low oxygen levels
What are the 9 stages of neonatal behaviour? + Aid memoir
Big cry, Relaxation, Awakening, Activity, Rest, Crawling, Familiarisation, Suckling, Sleep.
Big Red Apples Are Really Crunchy For Small Seals.
How do we create an environment that encourages oxytocin release after birth?
Quiet, private & dark
How do we create an environment that encourages prolactin release after birth?
Mum and baby have to be together
What is so special about human milk?
It’s matched to the needs of the baby, it has live constituents and it protects the baby’s gut
What does IgD do?
Combats discuses without causing inflammation