Biology Unit 8

Axon Neuron

- single thread - transmits signal from cell body

What takes place through the tissues of the alveoli?

-Blood going to cells receives O 2 -Blood coming from the cells releases CO 2

Pectoral Girdle

-arms -scapulae

Dendrite Neuron

-branching "tree-like" structure -receives signals

How do nerve signals pass through a synapse?

-by chemical transmitters -by acetylcholine

erythrocytes

-carries CO2 -devoid of nucleus

leukocytes

-disease protection -phagocytosis

Pelvic girdle

-ilium -sacrum -ischium

___________________________ filtration of the blood is called dialysis.

Artificial

The tissue which diverts food from the trachea upon swallowing is the ________________________.

Epiglottis

Through which part of the ear is pressure equalized when ascending or descending through the atmosphere?

Eustachian tube

TRUE/FALSE: The lungs contain elastic muscle tissue to permit inhalation.

FALSE

Blood flowing to the lungs from the heart flows through the ________________________________________________.

Pulmonary Arteries

A body system consists of:

a group of organs which perform a common function

between the left ventricle and the aorta

aortic valve

Aspherical distortion of light through the cornea is called __________________.

astigmatism

The circulatory system removes waste products from:

cells

The absorption of oxygen into individual cells is part of __________________________________.

cellular respiration

The transparent anterior sclera is called the ____________.

cornea

multiple axons

electrical cable

transports food from mouth to stomach

esophagus

The long bone in the upper leg is the __________________.

femur

What is the function of the lymph nodes?

filter and purify interstitial liquid returning to the blood

storage of bile from liver

gall bladder

Hyperthyroidism may cause the victim to _____________________________.

have bulging eyes

Inadequate thyroid hormone is known as what?

hypothyroidism

The primary organ responsible for eliminating liquid waste is the:

kidney

purify blood and produce urine

kidneys

The connective tissue that attaches bone to bone is called ____________________ and muscle to bone is called __________________.

ligaments; tendons

The process of chromosome reduction occurs during:

meiosis

between the left atrium and the left ventricle

mitral valve

The loss of muscle function due to muscle disease or disease in the nervous system may cause _____.

paralysis

controls endocrine glands

pituitary gland

Impulse Neuron

polarization

between the right ventricle and the lungs

pulmonary valve

The two bones of the lower arm are:

radius and ulna

produce blood cells

red bone marrow

The retinal cells responsible for night vision are:

rods

Most absorption of food occurs in the:

small intestine

The liver and pancreas are connected to the:

small intestine

synapse

space between neurons

Rh blood factor is determined by:

the presence or absence of a particular erythrocyte protein

between the right atrium and the right ventricle

tricuspid valve

Diastole is:

when the ventricles relax and fill with blood