and Physiology questions and
answers
What is anatomy?
✔️✔️ Anatomy is the study of the structure of the body and the relationship between its parts.
What is physiology?
✔️✔️ Physiology is the study of how the body and its parts function.
What is homeostasis?
✔️✔️ Homeostasis is the maintenance of a stable internal environment in the body.
What is a cell?
✔️✔️ A cell is the basic structural and functional unit of life.
What is a tissue?
✔️✔️ A tissue is a group of similar cells that perform a specific function.
What are the four main types of tissues?
✔️✔️ Epithelial, connective, muscle, and nervous tissue.
What is an organ?
✔️✔️ An organ is a structure made of different tissues working together to perform a function.
What is an organ system?
✔️✔️ An organ system is a group of organs working together to perform major body functions.
What is the anatomical position?
✔️✔️ The anatomical position is standing upright, facing forward, arms at the sides, and palms
facing forward.
What is the sagittal plane?
✔️✔️ The sagittal plane divides the body into left and right parts.
What is the frontal plane?
✔️✔️ The frontal plane divides the body into front and back parts.
What is the transverse plane?
✔️✔️ The transverse plane divides the body into upper and lower parts.
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,What does superior mean in anatomy?
✔️✔️ Superior means toward the head or upper part of a structure.
What does inferior mean in anatomy?
✔️✔️ Inferior means toward the lower part of a structure.
What does anterior mean?
✔️✔️ Anterior means toward the front of the body.
What does posterior mean?
✔️✔️ Posterior means toward the back of the body.
What does medial mean?
✔️✔️ Medial means closer to the midline of the body.
What does lateral mean?
✔️✔️ Lateral means farther from the midline of the body.
What is proximal?
✔️✔️ Proximal means closer to the point of attachment.
What is distal?
✔️✔️ Distal means farther from the point of attachment.
What is the integumentary system?
✔️✔️ The integumentary system includes skin, hair, and nails that protect the body.
What is the skeletal system?
✔️✔️ The skeletal system provides support, protection, and structure for the body.
What is the function of muscles?
✔️✔️ Muscles produce movement and help maintain posture.
What is the nervous system responsible for?
✔️✔️ The nervous system controls and coordinates body activities.
What is a feedback loop?
✔️✔️ A feedback loop is a system that regulates homeostasis through responses to changes.
What is negative feedback?
✔️✔️ Negative feedback is a process that reverses a change to maintain stability.
What is positive feedback?
✔️✔️ Positive feedback is a process that amplifies a change until a specific event occurs.
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,What is an atom?
✔️✔️ An atom is the smallest unit of an element that retains its properties.
What is a molecule?
✔️✔️ A molecule is formed when two or more atoms bond together.
What is an ion?
✔️✔️ An ion is an atom or molecule with a net electrical charge.
What is a proton?
✔️✔️ A proton is a positively charged particle in the nucleus of an atom.
What is a neutron?
✔️✔️ A neutron is a neutral particle found in the nucleus of an atom.
What is an electron?
✔️✔️ An electron is a negatively charged particle that moves around the nucleus.
What is a chemical bond?
✔️✔️ A chemical bond is a force that holds atoms together in molecules.
What is a covalent bond?
✔️✔️ A covalent bond is formed when atoms share electrons.
What is an ionic bond?
✔️✔️ An ionic bond is formed when electrons are transferred between atoms.
What is diffusion?
✔️✔️ Diffusion is the movement of particles from high concentration to low concentration.
What is osmosis?
✔️✔️ Osmosis is the diffusion of water across a semipermeable membrane.
What is active transport?
✔️✔️ Active transport is the movement of substances using energy against a concentration
gradient.
What is passive transport?
✔️✔️ Passive transport is movement of substances without energy use.
What is metabolism?
✔️✔️ Metabolism is all chemical reactions occurring in the body.
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, What is catabolism?
✔️✔️ Catabolism is the breakdown of complex molecules into simpler ones releasing energy.
What is anabolism?
✔️✔️ Anabolism is the building up of complex molecules from simpler ones using energy.
What is cytoplasm?
✔️✔️ Cytoplasm is the jelly-like substance inside the cell where organelles are found.
What is the nucleus?
✔️✔️ The nucleus is the control center of the cell containing DNA.
What is the cell membrane?
✔️✔️ The cell membrane is a protective barrier that controls what enters and leaves the cell.
What are mitochondria?
✔️✔️ Mitochondria are organelles that produce energy for the cell.
What are ribosomes?
✔️✔️ Ribosomes are structures that synthesize proteins.
What is DNA?
✔️✔️ DNA is genetic material that carries instructions for cell function and inheritance.
What is RNA?
✔️✔️ RNA helps in protein synthesis using genetic instructions from DNA.
What is epithelial tissue?
✔️✔️ Epithelial tissue covers body surfaces and lines organs.
What is connective tissue?
✔️✔️ Connective tissue supports, binds, and protects other tissues.
What is muscle tissue?
✔️✔️ Muscle tissue enables movement of the body and internal organs.
What is nervous tissue?
✔️✔️ Nervous tissue transmits electrical signals for communication.
What is the heart?
✔️✔️ The heart is a muscular organ that pumps blood throughout the body.
What is blood?
✔️✔️ Blood is a fluid connective tissue that transports oxygen, nutrients, and waste.
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