Anatomy: TEST 1

The portion of a sarcomere that contains the thick filaments and the zone of overlap is the

A-band

Which type of cell divides to produce daughter cells that can differentiate readily after a bone is cracked or broken?

osteoprogenitor cell

The facial bones ___

protect and support the entrances to the digestive and respiratory tracts

Support, protection of soft tissues, mineral storage, and blood cell formation are all functions of the ________

skeletal system

The primary site of blood cell production is within the ________.

skeletal system

Which of the following contains the foramen ovale?

sphenoid

A person lying down in the anatomical position is said to be ________ when lying face up.

supine

The anatomical specialty that refers to the study of general form (or morphology) and superficial anatomical markings is called ________.

surface anatomy

The study of the heart, blood, and blood vessels is which of the following approaches?

systemic anatomy

which of the following ions is the trigger for a muscle contraction

calcium

Which of the following is the type of muscle that pushes blood through the arteries and veins of the circulatory system?

cardiac muscle

The layers of connective tissue surrounding a skeletal muscle from the inside to the outside in correct order are _____

endomysium, perimysium, and epimysium

Which bone makes up most of the floor of the orbit?

maxilla

Which of the following features belongs to the mandibular bone?

mental foramen

which of these orders of functional muscle structures progresses from the smallest to largest in diameter?

myofibril, muscle fiber, fascicle, muscle

which of the following is the highest level of organization

organs

In the case of the triceps brachii, the shoulder is the ______; the olecrenon is the ______

origin; insertion

The function of an osteoclast in osseous tissue is _____

to dissolve old bone matrix and release amino acids and the stored calcium and phosphate

Perforating canals ________.

transmit blood vessels to osteons deep inside the bone

When contraction occurs

-the I band begins to disappear -the z lines move closer together -the a band remains constant -the h band gets smaller

Choose the correct arrangement of items 1-5, ranking them from the highest to the least level of complexity. (1) organism (2) tissue (3) chemical or molecular (4) cellular (5) organ system

1-5-2-4-3

The area of a myofibril where there are no actin filaments is the

H-band

Which of the following directional reference pairs consists of anatomical equivalents when referring to the human body?

anterior, ventral

The divisions of the skeletal system include (the) ____

axial and appendicular

Which of the following is produced within red bone marrow?

blood cells

Layers of bone that occur at the external and internal surfaces of the bone are referred to as ________.

circumferential lamellae

In anatomical position, a person stands with the legs together and the feet flat on the floor. Additionally, the_______

hands are at the sides, and the palms face anteriorly

The function of T Tubules is to _____________

help distribute the electrical impulse, which triggers the release of calcium ions by the sarcoplasmic reticulum

Which bone is not in direct contact with any other bone of the skeleton?

hyoid

what does the name flexor carpi radialis most likely mean?

it is a lateral forearm muscle that flexes at the wrist

Which type of anatomy refers to the study of all of the superficial and internal features in a specific area of the body?

regional anatomy