Chapter 1-4 Anatomy and Physiology-
must know questions and verified
amswers
What is the primary focus of anatomy as a science?
✔️✔️ The study of the structure and physical organization of the body and its parts
What does physiology specifically examine?
✔️✔️ The functions and processes that occur within the body
How do structure and function relate in the human body?
✔️✔️ The structure of a body part determines how it functions
What is the simplest level of structural organization in the human body?
✔️✔️ The chemical level involving atoms and molecules
What level follows the chemical level in body organization?
✔️✔️ The cellular level
What is a cell?
✔️✔️ The smallest unit of life capable of carrying out all vital functions
What level of organization is formed by groups of similar cells?
✔️✔️ Tissue level
What defines an organ?
✔️✔️ A structure composed of two or more tissue types performing a specific function
What is an organ system?
✔️✔️ A group of organs working together to perform major body functions
What is the highest level of organization in the body?
✔️✔️ The organism level
What is homeostasis?
✔️✔️ The ability of the body to maintain stable internal conditions
What mechanism helps maintain homeostasis?
✔️✔️ Feedback systems
1
,What is negative feedback?
✔️✔️ A mechanism that reverses a change to maintain stability
What is positive feedback?
✔️✔️ A mechanism that enhances or amplifies a change
What is an example of positive feedback in the body?
✔️✔️ Childbirth contractions increasing until delivery
What is metabolism?
✔️✔️ All chemical reactions that occur within the body
What is the difference between catabolism and anabolism?
✔️✔️ Catabolism breaks down substances, while anabolism builds them up
What are the basic life processes?
✔️✔️ Metabolism, responsiveness, movement, growth, differentiation, and reproduction
What is responsiveness?
✔️✔️ The body’s ability to detect and respond to stimuli
What is differentiation?
✔️✔️ The process by which unspecialized cells become specialized
What is the anatomical position?
✔️✔️ Standing upright, facing forward, arms at sides, palms forward
What is the superior direction?
✔️✔️ Toward the head or upper part of the body
What does inferior mean in anatomy?
✔️✔️ Away from the head or toward the lower part
What is anterior?
✔️✔️ Toward the front of the body
What is posterior?
✔️✔️ Toward the back of the body
What is medial?
✔️✔️ Toward the midline of the body
What is lateral?
✔️✔️ Away from the midline
2
,What is proximal?
✔️✔️ Closer to the point of attachment
What is distal?
✔️✔️ Farther from the point of attachment
What is a sagittal plane?
✔️✔️ Divides the body into left and right portions
What is a frontal plane?
✔️✔️ Divides the body into anterior and posterior portions
What is a transverse plane?
✔️✔️ Divides the body into superior and inferior portions
What is a body cavity?
✔️✔️ A space within the body that houses internal organs
What is the dorsal cavity?
✔️✔️ The cavity that contains the brain and spinal cord
What is the ventral cavity?
✔️✔️ The cavity that contains thoracic and abdominopelvic organs
What organs are found in the thoracic cavity?
✔️✔️ Heart and lungs
What does the diaphragm separate?
✔️✔️ The thoracic cavity from the abdominal cavity
What is the abdominopelvic cavity?
✔️✔️ The cavity containing digestive, urinary, and reproductive organs
What is the function of serous membranes?
✔️✔️ To reduce friction between organs
What are the four basic tissue types?
✔️✔️ Epithelial, connective, muscle, and nervous tissue
What is the function of epithelial tissue?
✔️✔️ Protection, absorption, and secretion
What characterizes connective tissue?
✔️✔️ It supports, binds, and protects body structures
3
, What is muscle tissue responsible for?
✔️✔️ Movement
What is the role of nervous tissue?
✔️✔️ Transmitting electrical signals for communication
What is the cell membrane?
✔️✔️ A selectively permeable barrier surrounding the cell
What is the function of the nucleus?
✔️✔️ It contains genetic material and controls cell activities
What are organelles?
✔️✔️ Specialized structures within a cell with specific functions
What is the function of mitochondria?
✔️✔️ Producing energy (ATP)
What is the ribosome’s role?
✔️✔️ Protein synthesis
What is the endoplasmic reticulum?
✔️✔️ A network involved in protein and lipid synthesis
What does the Golgi apparatus do?
✔️✔️ Modifies and packages proteins
What is diffusion?
✔️✔️ Movement of molecules from high to low concentration
What is osmosis?
✔️✔️ Movement of water across a semipermeable membrane
What is active transport?
✔️✔️ Movement of substances against a concentration gradient using energy
What is a solution in the body?
✔️✔️ A homogeneous mixture of solutes and solvent
What is a solute?
✔️✔️ The substance dissolved in a solution
What is a solvent?
✔️✔️ The substance that dissolves the solute
4
must know questions and verified
amswers
What is the primary focus of anatomy as a science?
✔️✔️ The study of the structure and physical organization of the body and its parts
What does physiology specifically examine?
✔️✔️ The functions and processes that occur within the body
How do structure and function relate in the human body?
✔️✔️ The structure of a body part determines how it functions
What is the simplest level of structural organization in the human body?
✔️✔️ The chemical level involving atoms and molecules
What level follows the chemical level in body organization?
✔️✔️ The cellular level
What is a cell?
✔️✔️ The smallest unit of life capable of carrying out all vital functions
What level of organization is formed by groups of similar cells?
✔️✔️ Tissue level
What defines an organ?
✔️✔️ A structure composed of two or more tissue types performing a specific function
What is an organ system?
✔️✔️ A group of organs working together to perform major body functions
What is the highest level of organization in the body?
✔️✔️ The organism level
What is homeostasis?
✔️✔️ The ability of the body to maintain stable internal conditions
What mechanism helps maintain homeostasis?
✔️✔️ Feedback systems
1
,What is negative feedback?
✔️✔️ A mechanism that reverses a change to maintain stability
What is positive feedback?
✔️✔️ A mechanism that enhances or amplifies a change
What is an example of positive feedback in the body?
✔️✔️ Childbirth contractions increasing until delivery
What is metabolism?
✔️✔️ All chemical reactions that occur within the body
What is the difference between catabolism and anabolism?
✔️✔️ Catabolism breaks down substances, while anabolism builds them up
What are the basic life processes?
✔️✔️ Metabolism, responsiveness, movement, growth, differentiation, and reproduction
What is responsiveness?
✔️✔️ The body’s ability to detect and respond to stimuli
What is differentiation?
✔️✔️ The process by which unspecialized cells become specialized
What is the anatomical position?
✔️✔️ Standing upright, facing forward, arms at sides, palms forward
What is the superior direction?
✔️✔️ Toward the head or upper part of the body
What does inferior mean in anatomy?
✔️✔️ Away from the head or toward the lower part
What is anterior?
✔️✔️ Toward the front of the body
What is posterior?
✔️✔️ Toward the back of the body
What is medial?
✔️✔️ Toward the midline of the body
What is lateral?
✔️✔️ Away from the midline
2
,What is proximal?
✔️✔️ Closer to the point of attachment
What is distal?
✔️✔️ Farther from the point of attachment
What is a sagittal plane?
✔️✔️ Divides the body into left and right portions
What is a frontal plane?
✔️✔️ Divides the body into anterior and posterior portions
What is a transverse plane?
✔️✔️ Divides the body into superior and inferior portions
What is a body cavity?
✔️✔️ A space within the body that houses internal organs
What is the dorsal cavity?
✔️✔️ The cavity that contains the brain and spinal cord
What is the ventral cavity?
✔️✔️ The cavity that contains thoracic and abdominopelvic organs
What organs are found in the thoracic cavity?
✔️✔️ Heart and lungs
What does the diaphragm separate?
✔️✔️ The thoracic cavity from the abdominal cavity
What is the abdominopelvic cavity?
✔️✔️ The cavity containing digestive, urinary, and reproductive organs
What is the function of serous membranes?
✔️✔️ To reduce friction between organs
What are the four basic tissue types?
✔️✔️ Epithelial, connective, muscle, and nervous tissue
What is the function of epithelial tissue?
✔️✔️ Protection, absorption, and secretion
What characterizes connective tissue?
✔️✔️ It supports, binds, and protects body structures
3
, What is muscle tissue responsible for?
✔️✔️ Movement
What is the role of nervous tissue?
✔️✔️ Transmitting electrical signals for communication
What is the cell membrane?
✔️✔️ A selectively permeable barrier surrounding the cell
What is the function of the nucleus?
✔️✔️ It contains genetic material and controls cell activities
What are organelles?
✔️✔️ Specialized structures within a cell with specific functions
What is the function of mitochondria?
✔️✔️ Producing energy (ATP)
What is the ribosome’s role?
✔️✔️ Protein synthesis
What is the endoplasmic reticulum?
✔️✔️ A network involved in protein and lipid synthesis
What does the Golgi apparatus do?
✔️✔️ Modifies and packages proteins
What is diffusion?
✔️✔️ Movement of molecules from high to low concentration
What is osmosis?
✔️✔️ Movement of water across a semipermeable membrane
What is active transport?
✔️✔️ Movement of substances against a concentration gradient using energy
What is a solution in the body?
✔️✔️ A homogeneous mixture of solutes and solvent
What is a solute?
✔️✔️ The substance dissolved in a solution
What is a solvent?
✔️✔️ The substance that dissolves the solute
4
