Lecture 1 - Structural Organization and Body Systems Flashcards
(22 cards)
The _____ is a single, complete individual.
organism
An ___________ is a group of organs with a unique collective function.
organ system
How many organ systems is the body comprised of?
11
hair, skin, nails, that protect the deeper tissues of the body
Integumentary system
bones protect and support organs, attach muscles, and provide for blood cell formation
Skeletal system
allows movement, maintains posture, and produces heat
Muscular system
control system that responds to internal and external changes, activating the appropriate response.
Nervous system
source of hormones that regulate the processes of the body
Endocrine system
the heart and blood vessels work together to transport blood. containing oxygen, nutrients and other substances, throughout the body
Cadiovascular system
circulates excess fluid to blood, removes debris, houses cells of the immune system, which protect the body from disease and damage
Lymphatic and immune systems
provides airflow to allow exchange of oxygen and carbon dioxide between the body and the atmosphere
Respiratory system
breaks down food into molecules that can absorbed into the body, stores and eliminated wastes
Digestive system
eliminated nitrogenous wastes, and regulates water and ion balance
Urinary system
produces sex hormones and gametes
Reproductive systems
An _______ is a structure composed of two or more tissue types that work together to carry out a particular function.
organ
A _______ is a mass of similar cells and cell products that forms a discrete region in an organ and carries out a specific function
tissue
What are the four primary tissue classes
-Epithelial
-Connective
-Nervous
-Muscular
____ are the smallest units of an organism that can carry out all the basic functions fo life
Cells
________ are microscopic structures within a cell that carry out individual functions
Organelles
Examples: mitochondria, centrosomes, and lysosomes
________ are groups of two or more atoms bonded together.
Molecules
Cells and their organelles contain highly complex _______
macromolecules
_____ are the smallest particles of matter that have unique chemical identities
Atoms
