Chapter 2

• The Responsible for the movement of the body is the Muscular System
• The Responsible for the gas exchange between 02 and c02 is the Respiratory System
• Responsible for the framework of the body is the Skeletal System
• Responsible for the distribution of the nutrients throughout the body is the Cardiovascular System
• Responsible for the excreation of waste from the blood is the Urinary System
• Responsible for breaking down of food, extraction of nutrients and eliminating waste is the Digestive System
• Responsible for the control of the entire body system to promote homeostasis/balance is the Nervous System
• Responsible for making and release of hormones is the Endocrine System
• Responsible for the immunity of the body is the Lymphatic System
• Responsible for covering and protection of the body against foreign invaders is the Intequmentary System
• The Smallest unit of element that cannot be divided is Atom
• Collection of Atoms - Molecule
• Most significant molecule in the body - DNA
• Collection of Molecules - Cell
• Collection of cells - tissue
• collection of tissue - organ
• collection of organ - organ system
• collection of organs - organism
• • Homeostasis is the state of dynamic stability of the body's internal conditions
• • Atoms are made up of subatomic particles such as the proton, electro, and neutron
• • Cell is the smallest independently functioning unit of a living things
• • a variety of tiny functioning units called. organelles
• • a group of many cells that work together to perform a specific function. tissue
• • is a structure of the body that is composed of two or more tissue types. organ
• • is a group of organs that work together tonperfor a major function. organ system
• • •creates a barrier that protects the body from pathogens and fluid loss. •sensory reception. integumentary system
• • Support and protect the body. skeletal system
• • •creates the movement of the body.•contributes to body temperature homeostasis. Muscular system
• •Acts as the sensor for homeostasis.•connects the brain to every part of the body. Nervous system
• secretes the hormones that regulate many bodily processes. Endocrine system
• Delivers oxygen, nutrients, hormones, and waste products throughout the body. Cardiovascular system
• Regulates fluid balance in the body. Lymphatic system
• Exhanges air with the atmosphere. Respiratory system
• Breaks down food and absorbs nutrients into the body. Digestive system
• •contributes to blood pressure and pH homeostasis.•Removes waste products from the body. Urinary system
• •produce and exchange gametes•house the fetus until birth. reproductive systems
• a human body consists of approximately 40 trillion human cells