Practice Quizzes (6-12)

__ means toward the front.

Anterior

The plane that divides the body vertically into left and right portions is the

midsagittal plane

Anatomy is the scientific study of

shape and structure

The term that means “above another part” is

superior

The body’s organizational levels, from simplest to most complex are

cells, tissues, organs, body systems.

The term for “specialization of cells” is

differentiation

The life span of a nerve cell is

100 years

The term that refers to the body cavity containing the heart and lungs

thoracic

The appendicular region of the body consists of

limbs

The function of connective tissue is to

all the answers

Visceral, nonstriated, and involuntary are terms used to describe

involuntary muscle tissue.

_______is how most cells divide, a “parent” cell divides into two “daughter” cells that have same set of chromosomes as each other.

Mitosis

The frontal plane divides the body into left and right sections.

False

Physiology is the study of how the body functions and is closely related to anatomy as one continuously influences the other.

True

The outer surface of bone is covered with

periosteum

A ring of protective lymphoid tissue located in the upper portions of the nose and throat is formed by which structure?

tonsils

Bony spicules in cancellous bone that form a meshwork of intercommunicating spaces filled with bone marrow are

trabeculae

The portion of skeleton that consists of the skull, spinal column, ribs, and sternum is the

axial

The lighter bone found in the interior of bones is called

cancellous

The double-walled sac that encloses the heart is the

pericardium

The integumentary system is the

skin system

What type of bone marrow is found in cancellous bone?

Red bone marrow

Moveable joints of the body are called

synovial joints

Striated muscles are also known as

skeletal and voluntary muscles

The straw-colored fluid that transports nutrients, hormones, and waste products is

plasma

The structures of the lymphatic system include

all of the options

The nervous system is composed of the

central and peripheral nervous systems.

The neurons that emerge from the skin or sense organs and carry impulses toward the brain and spinal cord are the

sensory neurons.

The space between two neurons or between a neuron and a receptor organ is the

synapse.

The nose is divided by a wall of cartilage called the

nasal septum

The tubelike structure, approximately 10 inches in length, that transports food from the pharynx to the stomach is the

esophagus

The __________ extends from the stomach to the first part of the large intestine.

small intestine

When the blood sugar level is low, the __________ convert(s) the glycogen back into glucose and release(s) it for use by the body.

liver

The endocrine glands include the

all of the options

Oil glands that keep the hair and skin soft are

sebaceous

Cells that form bone are

osteoblasts

The outer layer of bone is the

compact bone

An inflammation of the joint is

arthritis

Teeth belong to the

digestive system

Another name for the nostrils is

nares

Immediately prior to air reaching the throat, it passes through the

pharynx

The area located behind the nose and above the soft palate is the

nasopharynx

What prevents food from entering the lungs while swallowing?

Epiglottis

The primary function of the mucus membranes in the nose is to

provides mucus to moisten and warm the air.

Cartilage is strong but not as elastic as bone.

False

The largest part of the brain is the cerebrum.

True

Ectoderm differentiates into

all the options

The periodontal ligament is capable of

repair

The innermost area of the tooth is the

pulp chamber

Dentin

all of the options

The hardest calcified substance in the body is

enamel

Enamel-producing cells are called

ameloblasts

The compact bone that lines the tooth socket is known as the

cortical plate

The earliest signs of tooth development appear

during the first trimester of pregnancy.

The structure units of enamel are called enamel

prisms

The primary purpose of ____________fibers of the periodontal ligament, is to aid in resisting tipping and twisting of the tooth.

interradicular

Embryology is the study of

prenatal development prior to birth.

Histology is the study of

structure and function at the microscopic level.

The face and its related tissues begin to form during the

fifth week of prenatal development.

Tooth enamel is formed in the

ectodermal embryonic layer.

The dentition of a 5-year-old child, ±9 months, would contain

all primary teeth.

The shedding of a primary tooth is called

exfoliation

The division of a tooth root into three roots is called

trifurcation

An enamel rod is composed of

calcified enamel prisms.

Tertiary dentin

forms on the wall of the pulp chamber in response to an irritant.

The mucosa noted for a soft texture, a moist surface, and an ability to cushion underlying structures is

lining mucosa

Mature enamel lacks the cells capable of remodeling and repair.

True

The main portion of the tooth structure is made up of enamel.

False

The portion of the pulp that lies within the crown of the tooth is the radicular pulp.

False

The ____________ forms the prominence of the cheek.

zygomatic arch

In the temporomandibular joint, the ____________ action forms the second phase of mouth opening and movement.

gliding

The ____________ salivary glands lie subcutaneously just in front of and below each ear.

parotid

The ____________ muscle serves to compress the cheeks, hold food in contact with the teeth, and retract the angles of the mouth.

buccinator

The ____________ nerve innervates the maxillary central, lateral, and canine teeth.

anterior superior alveolar

The facial nerve innervates which muscle(s) of facial expression?

All of the options are correct.

The major blood supply to the mandibular incisors is the incisive branch of the ____________ artery.

inferior alveolar

The _____ is the strongest and most obvious muscle in mastication.

masseter

A ____________ is an opening in bone through which blood vessels, nerves, and ligaments pass.

foramen

The ____________ artery enters the face at the inferior border of the mandible and can be detected by gently palpating the mandibular notch.

facial

The bones that make up the inner angle of the eye socket are the

lacrimal bones

The parotid salivary gland

all of the options are correct

A calcium buildup that blocks salivary gland is referred to as a

Sialolith

The artery behind the angle of the mandible and branches into 3 sections is the

maxillary artery

The primary source of innervation to the oral cavity is the

trigeminal nerve

The function of the lymph is to

all of the options

The function of the paranasal sinus is to

all of the options

The nerve responsible for the sense of smell is the

olfactory nerve

The artery with distribution to the hard palate and lingual gingiva is the

greater palatine artery.

At the time of birth, all the bones of the skull are fused as a single bone.

False

There is very little difference between a male and a female skull.

False

Pain in and around the ear, pain in chewing, pain in the face, head, and neck, and clicking of the jaw when opening may indicate a temporomandibular disorder.

True

Irregular ridges or folds in the mucous membrane located on the anterior portion of the hard palate just behind the maxillary incisors are

rugae

A narrow fold of mucous membrane passing from a more fixed to a movable part of the oral structure is the

frenum

The corners of the lips are called the

commissures

The filiform papillae, which covers the surface of the tongue, are the receptors of

touch

The ____________ is a pear-shaped structure formed by dense connective tissue and located directly posterior to the maxillary central incisors.

incisive papilla

The __________ is the extension of the free gingiva that fills the interproximal space between two teeth.

interdental gingiva

____________ extends from the base of the sulcus to the mucogingival junction.

Attached gingiva

The labial commissure is the

angle at the corner of the mouth where the upper and lower lips join.

Fordyce’s spots or granules are

normal, small yellowish elevations on the buccal mucosa.