There are six levels of organization in the body - what are they?
1) chemical
2) cellular
3) tissue
4) organ structure
5) organ system
6)
... [Show More] organism
The necessary life function that protects our internal environment from our external environment is provided by what system?
The integumentary system
The function of movement is provided by what system?
The muscular system
The function of responsiveness is provided by what system?
The nervous system
The function of digestion is provided by what system?
The digestive system
What is anabolism?
When more complex structures are synthesized from simpler ones.
What is catabolism?
When more complex structures are broken down into simpler ones.
Excretion involves what systems?
The respiratory system, the digestive system, and the urinary system.
The reproductive system is controlled by what other system?
The endocrine system.
Which tissue covers the body surface and lines the cavities of the body?
The epithelial tissue.
Name the three steps in cellular respiration.
1) glycolysis
2) citric acid cycle
3) electron transport chain
What is the purpose of ATP?
ATP provides cells with the energy necessary to carry out cellular activities and functions.
Epithelial cells perform what types of functions?
Secretion and absorption
What are the four basic tissue types?
1) epithelial
2) muscle
3) connective
4) nervous
Toward or at the body surface is known as what direction?
Superficial
Away from the body surface is what direction?
Deep
Between a more medial and a more lateral structure is what direction?
Intermediate
Toward or at the midline of the body or on the inner side of is what direction?
Medial
Away from the head end or toward the lower part of a structure of the body is what direction?
Inferior
Toward the head end or upper part of a structure (above) is what direction?
Superior
Toward or at the front of the body is what direction?
Anterior/Ventral
Is the knee proximal or distal to the pelvis?
Distal
Is the elbow proximal or distal to the hand?
Proximal
Toward or at the back of the body is what direction?
Posterior/Dorsal
Closing of a joint is which action?
Flexion
Opening of a joint is which action?
Extension
In anatomical position are the hands in pronation or supination?
Supination
Why are the hands palm forward in anatomical position?
In supination the forearm bones (the radius and ulna) are uncrossed.
Define elevation
upward movement of a structure
Define depression in anatomy
downward movement of a structure
Define retraction
the movement of a structure in the posterior direction
Define protraction
the movement of a structure in the anterior direction
A person standing in anatomical position moves their right wrist laterally toward the radius - what is this action called?
Radial deviation
This body division includes the head, neck, and trunk.
axial division
This is a vertical plane that divides the body into right and left parts.
sagittal plane
These planes lie vertically and divide the body into anterior and posterior parts.
frontal planes
A transverse plane divides the body into these two parts.
superior and inferior
These cuts/sections are made diagonally between the horizontal and vertical planes.
oblique
This body cavity protects the nervous system.
dorsal body cavity
This body cavity encases the brain.
cranial
This cavity encloses the spinal cord.
spinal
The frontal plane is also known as what plane?
coronal
The ventral body cavity is divided into these two cavities.
thoracic and abdominopelvic
This cavity encloses the heart.
pericardial
The outer surfaces of the organs and body cavities are covered by this double layered membrane called what?
serosa
What is pleurisy?
inflammation of the pleurae, which impairs their lubricating function and causes pain when breathing. It is caused by pneumonia and other diseases of the chest or abdomen.
The abdominopelvic region is divided into what four quadrants?
right upper, left upper, right lower, and left lower
This region surrounds the naval.
umbilical region
This region houses the pelvis.
illiac region
This cavity houses the teeth and tongue.
oral cavity
This cavity houses the eyes.
orbital cavity
Joints are lined with what?
synovial fluid
This cavity contains the tiny ear bones, name them.
middle ear: malleus, incus, and stapes
Why do active metabolizing cells need to be relatively small?
Active metabolizing cells need to be relatively small so that the metabolic processes can occur at a faster rate. As a cell gets bigger the ratio of surface area to volume decreases. The larger the surface area of a cell is relative to its volume, the faster metabolic processes can occur.
What are three differences between prokaryotic and eukaryotic cells?
1) Prokaryotic cells do not have a nuclear membrane whereas eukaryotic cells do
2) prokaryotic cells are usually smaller than eukaryotic cells
3) prokaryotic cells lack membrane-bound organelles that are found in eukaryotic cells.
What is the function of the nucleus?
The nucleus stores DNA and is the control center of the cell.
What is the function of ribosomes?
Ribosomes synthesize proteins.
What is the function of the smooth endoplasmic reticulum (ER)?
synthesizes lipids [Show Less]