human anatomy

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Vessels that carry blood away from the heart are called

arteries

Which of the following is not a function of the digestive system?

excrete liquid wastes

kidneys, bladder, ureters

excretory system

When the diaphragm and rib cage muscles relax

exhalation occurs

Which of the following is not a function of the human cardiovascular system?

filtering wastes out of the blood

brain, nerves, sensory receptors

nervous system

the heart chamber that receives blood from the venae cavae is the

right atrium

pulmonary had to do with

the lungs

what does the epiglottis cover?

the trachea

Urine leaves the body through the

urethra

An artery

usually carries oxygen-rich blood

If a blood vessel has valves, it probably is a(n)

vein

what is the pathway air must follow in the respiratory system?

air enters nose. dust gets trapped by the hairs. the nasal chamber is above the roof of the mouth, the air gets warmed and becomes moistened here. Air goes down the windpipe, which is also called the trachea. This is held open by rings of cartilage. The epiglottis is a flap of tissue over the trachea. It stops the food from going into the lungs. The trachea splits into two tubes called bronchi. each of the tubes goes to a lung. The tubes get smaller and smaller as they go into the lungs. These smaller tubes are called bronchioles. Lungs are the soft tissue where oxygen goes into the body carbon dioxide leaves. The tiny tubes of the lungs end in air sacs (like tiny balloons) called alveoli. These air sacs are covered with capillaries. The capillaries are where the oxygen and carbon dioxide enter and leave the blood.

The actual exchange of gases occurs at the site of the

alveoli

Which of the following would not help prevent bone loss

avoiding uv radiation

arteries carry blood

away from the heart

Which of the following structures enables the skin to receive nutrients, eliminate wastes, and regulate body temperature?

blood vessels

cardiovascular system

blood vessels, heart function; Transport of nutrients, oxygen, and hormones to cells throughout the body and removal of metabolic wastes (carbon dioxide, nitrogenous wastes).

respiratory system

brings o2 into the body and to the blood removes CO2 from the body

Alveoli in the lungs are connected to the bronchi by a network of tiny tubes called

bronchioles

The smallest and most numerous blood vessels in the body are the

capillaries

Enzymes in saliva begin the chemical digestion of

carbohydrates

The heart and the blood vessels are separate organs that form the

circulatory system

blood vessels, heart

circulatory system

large intestine, esophagus, rectum

digestive system

The last function of the digestive system is

elimination

testis, vas deferens, urethra

endocrine system

thyroid, pituitary and adrenal glands

endocrine system

The iron-containing molecule in red blood cells is called

hemoglobin

The kidneys play a major role in maintaining

homeostasis by removing urea, water, and other wastes from the blood

Which of the following occurs as air rushes into the lungs from the environment to equalize air pressure?

inhalation

Blood entering the right atrium

is deoxygenated

Each alveolus....

is surrounded by capillaries

Urea must be eliminated from the body because it

is toxic

what does the septum do for the heart

it divides the chambers

Oxygenated blood from the lungs is received by the

left atrium

The basic functional unit of the kidney is the

nephron

organs of respiratory system

nose, nasal chambers, larynx, pharynx, epiglottis, trachea, branchi, bronchicoles, alveoli, diaphram, lungs, mouth

pathway of air

nose>nasal chamber>pharynx>larynx>epiglottis>trachea>bronchi>bronchioles>alveoli

Gas exchange occurs when

oxygen diffuses from the alveoli through the capillary walls to the blood.

The wavelike contractions of muscle that move food through the digestive system are called

peristalsis

Pepsin and hydrochloric acid in the stomach begin the digestion of

protein

red blood cells transport

respiratory gasses

nose, vocal chords, lungs

respiratory system

list the four chambers

right, left ventricle right, left atrium

Which of the following is not moved by muscle tissue?

signals in the brain

vertebral column, skull, sternum

skeletal system

excretory system

the Excretory system is responsible for the elimination of wastes produced by homeostasis. There are several parts of the body that are involved in this process, such as sweat glands, the liver, the lungs and the kidney system.

the ventricles are

the chambers of the heart that pump blood to the lungs and to the rest of the body.

what is peristalsis

the involuntary constriction and relaxation of the muscles of the intestine or another canal, creating wavelike movements that push the contents of the canal forward

Most of the enzymes and chemicals secreted by the upper end of the small intestine come from

the liver and pancreas.

what is the function of bile

to provide enzymes

veins carry blood

towards the heart

bile is not produced in the gall bladder

true

The filtrate removed from the blood by the kidneys might contain

water, salts, amino acids, glucose, and urea

Defending the body against bacterial infection and invasion by foreign substances is a function of

white blood cells

Infections generally result in an increase in the number of

white blood cells


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