Q/A
What are the differences between Anatomy and Physiology?
Anatomy deals with, what are things called, and Physiology deals with, How do things work.
What is Homeostasis?
The ability to maintain a stable, balanced internal environment.
What are the three types of Membranes and what do they cover?
Pleural Membrane, it surrounds the lungs.
Pericardial Membrane, it surrounds the heart.
Peritoneal Membrane, surrounds the organs within the abdominopelvic cavity.
What are the three main types of muscle?
Smooth, Skeletal, and Cardiac.
What do neurons do?
What are the levels of organization form smallest to largest?
Atom, molecule, macromolecules, organelles, cells, Tissues, organs, organ systems, organisms.
What are the main body regions.
Axial portion, and Appendicular portion.
What body section divides the body into left and right portions?
Sagittal.
What are the functions of muscles?
Movement, Posture, Stabalize Joints, and Generate heat.
How do neurons communicate?
By releasing chemicals called neurotransmitters.
What are the characteristics of life?
Movement, Responsivness, Growth, Reproduction, Respiration, Digestion, Absorption, Circulation, Assimilation, and Excretion.
What cavities does the axial portion of the body contain?
Cranial Cavity, Vertebral canal, Thoracic Cavity, and Abdominopelvic Cavity.
How does the process of contraction work in muscles?
The energy from ATPase breaking down ATP puts Myosin Cross-bridges into a ready position.
A cocked cross bridge, binds Actin and pulls it.
An ATP causes the cross-bridge to release.
ATPase breaks down another ATP and puts the cross-bridge back into the ready position.
The cycle repeat as long as ATP is available.
What are the three main layer of tissue surrounding muscle.
Epimysium, Perimysium, and Endomysium.
How does Actin play an important role in what myosin?
Actin binds sites where myosin cross-bridges attach.
What is Metabolism?
The sum total of all the chemical reactions in the body that break substances down and build them up.
What are the two layers of serious membrane.
Parietal layer, and Visceral Layer.
What are I bands and A bands?
I bands are thin light.
A bands are dark and thick.
What is a muscle fiber?
Single cell that contracts in response to stimulation and then relaxes at the end of stimulation.
What are two energy sources from contracion?
ATP, and Creatine Phosphate, but It can directly supply energy.
What does life depend on?
Water, Food, Oxygen, Heat, and Pressure.
What are the 9 organ systems?
Integumentary System, Skeletal system, Muscular system, Nervous system, Endocrine system, digestive system, Cardiovascular system, Respiratory system, Urinary system, Reproductive system.
What two parts of the muscle fiber activate muscle contraction?
Sacroplasmic reticulum, Transverse tubules.
If your mucles are creating energy without oxygen what does it create?
Lactic Acid.
What is a major generator of heat on the body?
Muscles Tissue.