BODY STrUCTURES AND HOMEOOSTASIS Flashcards
What tissues make up serous membranes?
Simple squamous epithelium and dense irregular connective tissue
What is an example of a serous membrane?
Pericardium
What is the sagittal plane?
Right and left
What is the frontal plane
Dorsal and ventral
What is the transverse plane?
Superior and inferior
What organs does the cranial cavity contain
Brain
What is in the spinal cavity
Spinal cord and beginning of spinal nerves
What is in the thoracic cavity
Lungs and heart
What is in the abdominal cavity?
Stomach, spleen, liver, gall bladder, pancreas, small intestine and most of the large intestine
What is in the pelvic cavity
Bladder, colon, rectum, internal reproductive organs
What is in the right hypochondriac region
Liver, gall bladdrr
What is in the epigastric region
Liver and stomach
What is in the L hypochondriac region
Stomach and spleen
What is in the right lumbar region
Ascending colon
What in the umbilical region
Transverse colon and smalll intestine
What is in the L lumbar region
Descending colon
What is in the right iliac region
Appendix and caecum
What is in the hypogastric region
Lower smalll intestine and bladder
What is in the left iliac region
Proximal sigmoid colon
What are the two purposes of homeostasis
Maintain internal environment and alllow for chemical reactions to progress normally
What is in the internal environment
Cells and extra cellular fluid
What are the three conditions for homeostasis
Proper concentration of gas, optimum temperature and optimum pressure
What is the “input”
Stimulus that causes change
What is the “receptor”
Sensory receptors that detect change and send signals to the control centre
What is the “control centre’
Hypothalamus
What is the “effector”
Target tissues that receive signal and adjust to the condition
What are 4 receptor examples
Stretch receptors, temperature receptors, chemo receptors and nocireceptors
What are stretch receptors for?
BP
What are temp receptors for?
Internal and external
What are chemo receptors for
Ion, nutrient and gas concentrations
What are nociceptors for
Internal or external noxious stimuli (pain)
What are effector examples
Skeletal, smooth and cardiac muscles
