Fill in the blank Flashcards
___________ is the state of equilibrium that is maintained within the body’s internal environment.
homeostasis
an ____ is the smallest, most basic chemical unit of an element.
atom
a ________ is a chemical combination of two or more atoms from a specific chemical compound.
molecule
_____ is a tasteless, clear, odorless, liquid that makes up 55% of a female’s body weight.
water
_____ are considered the basic building blocks for various structures that make up human body
cells
the outer covering of the cell is called ____ ________ it allows some substances to pass into and out of the cell.
cell membrane
the substance between the cell membrane and the nucleus and is made of jelly like material is the _________.
cytoplasm
the _______ is responsible for the cell’s metobolism, growth, and reproduction. it contains the chromosomes.
nucleus
the nucleus contains the ___________ which are microscopic bodies that carry the genes that determine hereditary characteristics.
chromosomes
the human body has __ pairs of chromosomes
23
____ _____ are unspecialized and can give rise to specialized cell types, sources include embryos, adult tissue and umbilical cord blood.
stem cell
an activity, such as conception that takes place inside the body is known as __ ____ and the same activity that takes place outside the body (test tube) is known as __ _____.
in vivo and in vitro
3 primary functions of the cell membrane
- protects the cell
- provides communication
- allows substances to pass in and out of the cell
primary function of the cytoplasm
provides storage for the cell
2 primary functions of the nucleus
- controls activity within the cell
2. contains genetic material
______ is a grouping of similar cells that together perform specialized functions, there are four basic types.
tissue
the 4 basic types of tissues
- epithelial
- connective
- muscle
- nerve
6 functions of epithelial tissues
- protection
- absorption
- secretion
- sensation
- excretion
- diffusion
the most widespread and abundant of the body tissues, __________ tissue forms the supporting network for the organs of the body, is involved with muscles bones and joints
connective
3 types of muscle tissue
- skeletal
- smooth
- cardiac
_____ ______ consists of nerve cells
nerve tissue
multiple different tissues serving a common purpose or function make up structures called ______.
organs
a group of different organs functioning together for a common purpose is called a ______
system
Name the 11 body systems
- digestive
- integumentary
- nervous
- endocrine
- reproductive
- cardiovascular
- respiratory
- urinary
- muscular
- blood and the lymphatic
skeletal
the standard __________ ________ for the body is erect. head facing forward, arm by the sides with palms to the front.
anatomical position
toward the head
superior