BIO LABS

Why is myelin important? Check all that apply.

-It speeds up signal conduction in the nerve fiber. -It is formed to assist in the regeneration of damaged fibers. -It insulates the nerve fiber.

In humans, the anatomical term that is synonymous with "toward the head" is __________. Check all that apply.

-cephalic -cranial

The anatomical position of a cat refers to the animal standing erect on all four limbs and facing forward. On the basis of the etymology of the directional terms, movement towards the cat's head is considered cephalic and anterior and towards the cat's back are dorsal and superior Correct. In humans, cephalic and superior are toward the head, while dorsal and posterior are towards the back.

-cephalic and anterior -dorsal and superior -cephalic and superior -dorsal and posterior

heart Internal repro organs Brain Appendix

-mediastinum -Pelvic cavity -Cranial region -Lower-right abdominal quadrant

Which of the following study areas are available in APR for most of the body systems?

All of these study areas

Which of the following characteristics is common to oligodendrocytes and Schwann cells?

Both provide myelination.

How is the course content in APR within each study area organized at the highest level? For example, when you open the dissection study area what will you first filter by?

By body system

Which of the following parts of a neuron receives and processes information?

Cell Body

In the histology study area, how can you obtain information about the image type, original magnification, tissue source, and the stain or procedure used to obtain the displayed histological image?

Click the "i " icon (information icon) in the bottom right hand corner of the APR window

Which of the following sets of directional terms are most appropriately referred to as opposites?

Distal and proximal

How do you access the "My Course Content" established by your instructor so you know what structures to study in APR ?

Enter the custom code (alphanumeric) provided to you by your instructor

In the dissection study area there is only one possible method that can be used to view structures: you must click the structure name from the structure list to make it highlighted in the dissection module.

False

Once you enter the dissection or histology study areas for a certain body system, you need to first select a specific view, such as anterior or posterior, and then select a topic to study, for example muscles of the abdomen.

False

Schwann cells are glial cells of the central nervous system.

False

The user needs to drag the slider bar in an upwards direction in order to completely melt away a body layer when in the dissection study area.

False

When you enter the quiz study area in APR, the default setting for the quiz is "all content".

False

Which study area would you choose if you wished to see an X-ray of the thorax?

Imaging

Choose the correct statement about myelin.

It is best not to give children under two years of age a low-fat diet because myelin formation requires lipids.

There are several different test types in the quiz study area. Which setting requires a student to correctly type the name of the highlighted structure?

Lab Practical

Which of these are the proper terms for the different ways an organ can be sectioned?

Longitudinal, oblique, transverse

Divides the body or an organ into left and right sides. Divides the body or an organ into equal right and left sides. Divides the body or an organ into anterior and posterior portions. Divides the body or organ into superior and inferior sides. Passes through the body or an organ at an angle.

Sagittal (Medial) Midsagittal Frontal (Coronal) Transverse (Cross section or horizontal) Oblique

The head is ______ to the thorax. The wrist is ______ to the elbow. The scapula is _______ to the breastbone. The nose is ________ to the eyes.

Superior Distal Posterior Medial

After you have completed a quiz, or when you click the "End Test Now" button you will be shown a screen that lists the structures you incorrectly and correctly identified.True or False: If you click on the name of a structure you identified incorrectly or correctly you will be taken to the module in APR where you can review this structure.

True

In the PNS, unmyelinated fibers are enveloped in Schwann cells.

True

The body layers that can be dissected in the dissection study area are arranged from superficial to deep.

True

Thoracic region Abdominal region Pelvic Region

chest region btwn the cheat and hips pelvis

The thoracic cavity is separated from the abdominal cavity by the __________.

diaphragm

The Schwann cell's plasma membrane spirals repeatedly around the unmyelinated fiber as it does in a myelin sheath.

false

What plane divides the body into equal right and left halves?

median

In the anatomical position, the __________.

palms of the hands face anteriorly.

A bullet enters the left lung and collapses it. Which cavity has been entered?

pleural

In the anatomical position, a person is ________ with the upper limbs ________ and the palms facing ________.

standing erect; hanging against the sides; forward

The term "dorsal" means

toward the back of the body

Amputation of a foot at the ankle would involve a cut in the __________ plane.

transverse