D312 A&P 1 WITH LAB STUDY GUIDE - SECTION 1 (WGU - A&P 1 NOTES FROM
THE STUDY GUIDE) CORRECTLY
SOLVED!!
Describe the hierarchical organization and structure of the human body Answer - Chemical > Cellular > Tissue > Organ > System > Organism (the body) chemical level Answer - The chemical level is the most basic level of structural organization.Atom Answer - chemical elements that makes up the human body- in the chemical level , Oxygen, carbon, hydrogen, and nitrogen make up 96% of the body's mass.Molecule Answer - A group of atoms bonded together - in the chemical level cellular level Answer - The sum of the chemical reactions in a cell makes up its structure and function.Organelles Answer - A tiny cell structure that carries out a specific function within the cell tissue level Answer - Groups of cells form tissues There are four basic types of tissue grouped together by common features of structure and function Answer - epithelial tissue connective tissue muscular tissue nervous tissue The function of tissue is influenced by Answer - by its constituent cells but also by the material and connections inside and outside of the cell.organ level Answer - Organs are made up of different types of tissues system level Answer - related organs with a common function · organism level Answer - Any living thing, and is made up of 11 body systems. 1 / 2
integumentary system Answer - Consists of the skin, mucous membranes, hair, and nail integumentary system functions Answer - Protects the body from the external environment, excretes metabolic waste, helps to make vitamin D, and detects pain, touch, dehydration, and changes in temperature.Skeletal System Answer - the skeletal system consists of the bones and the cartilage associated with joints.skeletal system functions Answer - Protects the body, provides support and a framework for muscles to act upon, contains bone marrow for blood cells to develop in, and stores minerals such as calcium.Muscular System Answer - The muscular system consists primarily of skeletal muscle, but there are also two other types of muscle: cardiac muscle found in the heart and smooth muscle found within the viscera, including the alimentary canal and the walls of blood vessels.Muscular system function Answer - Enables the body to move by the action of opposing muscular contraction and relaxation. It also maintains posture and plays a role in thermoregulation.cardiac muscle Answer - an involuntary, striated muscle that makes up the walls of the heart smooth muscle Answer - a muscle found in viscera Nervous System Answer - The nervous system includes the brain, spinal cord, nerves, and special sense organs (e.g., eyes, ears, and taste buds). This system is divided into the central nervous system, containing the brain and spinal cord, and the peripheral nervous system, containing everything else.nervous system functions Answer - The functionality of the nervous system can be
split into three main stages:
Detecting changes in the internal and external environment, encoding them into electrical impulses, and transmitting them along the nerves.Processing electrical impulses and making decisions, either consciously or unconsciously.Activating muscles or glands to induce an appropriate response to the initial stimulus.Endocrine System Answer - The endocrine system consists of endocrine organs and endocrine tissue embedded within organs. Endocrine organs include the pituitary, thyroid, pineal, parathyroid, and adrenal glands. Endocrine tissue is also found within the hypothalamus, pancreas, thymus, gonads, heart, stomach, and small intestine.
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