How can we help?

You can also find more resources in our Help Center.

69 terms

Biology: Living World Ch21-23

Chapters 21-23 with additional information from masteringbiology.
STUDY
PLAY
Hierarchy of Organization
In animals, cells are grouped into tissues. Tissues combine to form Organs. Organs are organized into Organ Systems. Organ Systems make up the entire Organism.
Anatomy
The study of the structure of an organism
Physiology
Study of the function of an organism's structural equipment
Tissues
Group of similar cells that perform a specific function
Epithelial
Covers the surface of the body and lines organs and cavities within the body
Loose Connective Tissue
The most widespread connective tissue. It binds the EPITHELIA to underlying tissues and holds ORGANS in place.
Adipose Tissue
Stores fat, stockpiles energy, pads and insulates the body.
Blood
Is a connective tissue. Red and White blood cells is suspended in plasma.
Fibrous
Connective tissue that forms tendons and ligaments.
Cartilage
Forms the shock-absorbing pads that cushion the vertebrae of the spinal column.
Bone
Connective tissue with rubbery fibers that harden with deposits of calcium.
Skeletal Muscle
Responsible for voluntary movements. It is attached to bones by tendons
Cardiac Muscle
Its' contraction accounts for the heartbeat
Smooth Muscle
Found in the walls of various organs and is involuntary.
Nervous Tissue
Found in the brain and spinal cord. Makes the communication of the sensory information possible. Sensory input is received and processed, then motor output is relayed to make body parts respond. The basic unit is the neuron/nerve cell
Organ
Consists of 2 or more tissues that performs a specific function. (e.g. heart, liver, stomach, etc.)
Organ System
Teams of organs that work together to perform vital bodily functions.
Endocrine system
Secretes hormones that regulate the body.
Skeletal system
Supports body and anchors muscles.
Circulatory system
Transports substances throughout body.
Respiratory system
Exchanges O2 and CO2 between blood and air.
Integumentary system
Protects body. (Hair, nails, skin)
Uninary system
Rids body of certain wastes.
Digestion
Mechanical digestion - physical processes (chewing), Chemical digestion - breakdown of food by digestive enzymes. Digestive tubes - mouth and anus.
Human Digestive system
Consists of the alimentary canal and organs that secrete digestive chemicals.
Stomach
Churns food into a thick soup called ACID CHYME.
Small Intestine
The longest part of the alimentary canal. The major organ for chemical digestion and absorption.
Intestinal Wall
Contains villi and microvilli, which provide a large surface area for absorption.
Colon
Absorbs water from the alimentary canal and produces feces.
Cells
Break down food molecules in cellular respiration and generate many molecules of ATP.
Metabolic Rate
The rate energy consumption per day.
Circulatory System
A central pump (heart), vascular system (blood vessels), circulating fluid (blood).
Pulmonary Circuit
Carries blood between the heart and the lungs. (Heart to lungs and back)
Systemic Circuit
Carries blood between the heart and the rest of the body. (Heart to body and back)
Arteries
Carry blood toward the heart.
Capillaries
Allow for exchange between the bloodstream and tissue cells.
White Blood Cells
Fight infections and cancer. AKA leukocytes. 700 times fewer than red blood cells.
Respiratory Surface
Surface must be large enough to take up oxygen for every cell in the body.
Lungs
Most common respiratory surface of terrestrial organisms. The circulatory system transport oxygen from the respiratory surface to the rest of the body. Air moves through the body from the mouth/nose to the bronchioles.
Bronchioles
Dead-end in clusters of air sacs called alveoli.
Alveoli
Carry out the process of gas exchange in the lungs.
Smoking
Kills 440,000 of Americans every year.
Anatomy is the physiology as...
A book is to reading.
Which best describes the function of the kidneys?
Filtering blood, removing wastes and regulating water balance.
What are the functional units of the kidney?
Nephrons
The active movement of ions and drugs from capillaries into tubules is called...?
Secretion
If you are dehydrated, which would increase in your kidneys?
Reabsorption
The four major categories of tissue are...
nervous, epithelial, connective, and muscle
Homeostasis is the...
maintenance of a relatively constant internal environment
Ectotherm
Has no ability to generate heat internally.
Most mechanical processing of food occurs in the..
Oral cavity and stomach
Major segments of the alimentary canal in the correct order.
Oral cavity, esophagus, stomach, small intestine, large intestine
What is typical of a herbivorous diet?
nuts, leaves, berries
Food vacuoles
Specialized compartments where food particles are digested
What compound in dark chocolate makes it beneficial to health?
Flavenols
Which type of fatty acid is known to be anti-inflammatory?
Omega-3
Vitamin believed to decrease the risk of cognitive decline in aging adults
Vit B12
How do oxygen and carbon dioxide cross capillary walls?
Diffusion
Which vessel distributes oxygen-rich blood from the heart to the body in humans?
Arorta
Blood that flows through the pulmonary veins will be carried to the...
left atrium
Role of the atrioventricular valves in the heart
Allow blood to flow from the atria into the ventricles and to precent the blood from flowing back into the artia while the ventricles contract
Deoxygenated blood is delivered to the heart through
The superior and inferior vena cavae
Sequence of blood flow
atrium, ventricle, artery, arteriole, capillary, venule, vein
Erythrocytes
Blood cells containing hemoglobin, an iron-containing protein that transport oxygen.
Sequence that air passes through during breathing after it enters the mouth and nose...
pharynx, larynx, trachea, bronchi, bronchioles, alveoli
During inhalation...
the diaphragm and rib muscles contract
Hemoglobin
protein that can bind 4 molecules of oxygen
Order of passage as air is inhaled into the lungs
nasal cavity, pharynx, larynx, trachea, bronchiole, alveolus
Red blood cells
transport oxygen