BIOL 2401 Unit 1 Lab Manual Review

Fill-in-the-blank flashcards covering BIOL 2401 Lab Unit 1 concepts including microscopy, anatomical terminology, body cavities, tissue histology, skin layers, and skeletal structures.

The scanning objective lens has red markings and a magnification of __________.

$$4x$$

The total magnification of a specimen viewed under a high-power objective lens ($40x$) with a $10x$ eyepiece is __________.

$$400x$$

The microscope component used to make small focus adjustments, especially when using the high power lens, is the __________ adjustment knob.

fine

The microscope part used to vary the intensity of light projected upward into the slide is the __________ diaphragm.

iris

In the standard anatomical position, the face, feet, and __________ are facing forward.

palms

A body lying face down is described as being in the __________ position.

prone

A body lying face up is described as being in the __________ position.

supine

The directional term __________ means closer to the point of attachment of an appendage to the trunk.

Proximal

The thoracic cavity and abdominopelvic cavity are divided by a muscle called the __________.

diaphragm

The inner layer of a serous membrane immediately touching an organ is designated as __________.

visceral

The serous membranes covering the lungs are called the __________.

pleura

The anatomical plane that divides the body into EQUAL left and right sides down the middle is the __________ plane.

midsagittal

The plane that divides the body into anterior (front) and posterior (back) parts is the __________ plane.

coronal

The abdominopelvic cavity is divided into four quadrants by drawing imaginary lines through the __________.

umbilicus

Epithelial tissue with cells that are longer than wide at the apical surface is called __________ epithelium.

columnar

Epithelial tissue composed of more than one layer of cells is classified as __________ epithelium.

stratified

The functional cells of nervous tissue are called __________.

neurons

Cardiac muscle tissue is characterized by striations, non-voluntary control, and cell junctions called __________ Disks.

Intercalated

The deepest layer of the epidermis shown in skin models is the stratum __________.

basale

The smooth muscle that attaches to a hair follicle is the __________ pili muscle.

arrector

In a long bone, red bone marrow is the site of blood cell production and is found within __________ bone.

spongy

In bone histology, each concentric ring of matrix in an osteon is called a __________.

lamella

The empty spaces in bone matrix where mature bone cells live are called __________.

lacunae

The skeleton is grouped into the axial skeleton and the __________ skeleton.

appendicular

The human skull consists of $8$ cranial bones and __________ facial bones.

$$14$$

The joint between the parietal bones and the frontal bone is the __________ suture.

coronal

The joint along the midline between the right and left parietal bones is the __________ suture.

sagittal

The first cervical vertebra (C1) is also known as the __________.

atlas

The second cervical vertebra (C2), which features the dens process, is called the __________.

axis

The gel-like core of an intervertebral disc is called the nucleus __________.

pulposus

Ribs 1 to 7 attach directly to the sternum by costal cartilage and are called __________ ribs.

true