Final Flashcards
Respiratory system function
Primary function is gas exchange between alveoli and pulmonary capillaries
Immune system function
Primary function is to keep us disease free by keeping pathogens out
Digestive system function
Breakdown of food into nutrients to be absorbed for energy
Nervous system function
Primary function is to control and coordinate body functions by regulating organ systems
Urinary system function
Regulate extracellular fluid by filtering the blood of wastes
Lymphatic system function
Primary function is to maintain fluid levels in the body by returning fluid leaded out of capillaries back into the blood
Integumentary system function
It’s the largest organs system that protects us from the outside world and helps to regulate body temperature
Endocrine system function
secretes regulatory hormones into the blood
Musculoskeletal system function
Provides framework and movement and support for our body
Reproductive system
Produce offspring to continue the human species
Circulatory system function
Transport oxygen & nutrients to all over the body and removes wastes like carbon dioxide
Lythosomes
Contain digestive enzymes to digest worn out organelles or phagocytized pathogens
Ribosomes
Site of protein synthesis
Peroxisomes
Contain oxidative enzymes that remove hydrogen atoms from substrate
Secondary vesicle
Stores molecules and proteins from endoplasmic reticulum and Golgi apparatus until the cell is ready to release it
Mitochondrial
Site of ATP production: converts nutrients stored into glucose to atp for cells to perform cellular processes
Smooth endoplasmic reticulum
Site of lipid and carbohydrate synthesis as well as specialized functions in cells such as the liver having detoxing functions
Rough endoplasmic reticulum
Site of protein synthesis for proteins transported to Golgi apparatus
Golgi apparatus
Proteins are further modified, packaged and sent off to their final destination in the cell or body
Nucleus
Contains nucleolus and DNA
Nucleolus
Makes ribosomes
O2 role in the body
- Oxygen is the final electron acceptor for the electron transport
- It’s important for maintaining homeostasis
Blood pressure role in the body
Maintains adequate blood flow to tissues
Osmolarity role in the body
- Prevents shrinking and swelling of cells by maintaining water and sodium balance
Calcium role in the body
- Helps with coagulation ; formation of clots
- Binds to troponin to release tropomyosin revealing myosin binding site for myosin heads to bind to for muscle contractions
Potassium (k+) role in the body
Helps maintain normal levels inside cell via na+/k+ pump
Sodium (na+) role in the body
- Essential for creating resting membrane potential so excitable cells like neurons and muscle cells can create action potentials
Ph role in the body
- keep our acid/ base balance
Glucose role in the body
- Main source of energy for the body
- Helps keep blood sugar levels constant
Body temperature role in the body
Helps maintain homeostasis by shivering if too cold and sweating if too hot
Negative feedback loop for blood pressure (baroreceptor reflex)
Someone laying down gets gulp to quickly, causing venous return to decrease, causing end diastolic volume to decrease, decreasing stroke volume, which decreases cardiac output causing blood pressure to drop. The drop of blood pressure is sensed by the baroreceptors, who send signals to the cardiac control center and vasomotor center in the medulla oblongata. The cardiac control center sends signals to the arterioles to vasoconstrict and to increase cardiac rate .
