Basic Human A&P
Cells and Tissues
Molecules
Integumentary System
Neurons
100

This area between the pleural cavities contains the heart in the pericardium and major vessels. 

Mediastinum

100

A steeper concentration gradient, more channel proteins, and/or heat increase the rate of _______________ across the cell membrane.

(Facilitated) Diffusion

100

These bonds occur between molecules with polar covalent bonds (polar molecules), are weak individually, and are represented by dotted lines.

Hydrogen (H+) bonds

100

All epidermal cells originate from stem cells in this minor layer of the skin.

Stratum Basale

100

This changes the charge in the local area of the cell based on the strength of the stimulus. It may or may not trigger an AP.

Graded or Local Potential

200

The right hip bone is in this abdominal region (one of 9).

Right Iliac Region

200

Because cell membranes allow only some substances to pass, they are called this.

Selectively permeable

200

This reaction breaks polymers into monomers.

Hydrolysis or Decomposition

200

This minor layer of the skin is only found in the palmar and plantar regions.

Stratum Lucidum

200

A neuron is REpolarized when these channels open (use the full term).

Voltage-gated K+ Channels

300

This directional term means "closer to the tail."

Caudal

300

This organelle sorts proteins, forms their quaternary structure, and shops them to their final destination in vesicles.

Golgi apparatus

300

These proteins are never changed by the reactions they catalyze. A benefit to using them is that they speed up the reaction by reducing the Energy of Activation.

Enzymes

300

This is the only skin gland that secretes directly onto the skin through a pore.

Eccrine Sweat/Sudoriferous Gland

300

This is defined as: the high Na+ concentration outside and high K+ concentrations inside the neuron creates an electrical potential difference across the membrane of -70mV

Resting Membrane Potential

400

This section bisects the body, dividing it into right and left halves.

(Mid)sagittal

400

These glands secrete their contents via exocytosis (rather than whole or parts of the cell itself).

Merocrine

400

A Bohr Model of Magnesium (Atomic # 12) has ________ in its valence shell.

2 electrons

400

The Arrector Pili (structure) is made of this major type of tissue.

Muscle Tissue

400

The ____________ Principle states that as long as a stimulus is strong enough to exceed threshold, the neuron will fire the same size AP (+30mV) no matter how strong the stimulus. An AP is propagated or it isn't.

All-or-Nothing

500

These uncommon mechanisms make deviations from normal even larger.

Positive Feedback

500

Before mitosis can proceed, the cell must pass ______. The enzymes involved proofread the DNA, and can fix mutations or trigger apoptosis.

p53 checkpoint

500

In addition to a phosphate and nitrogenous base, this molecule contains a 5-Carbon sugar with an Oxygen on the 2' carbon.

RNA Nucleotide

500

This structure in the dermis contains neurons surrounded by many layers of a fatty substance. More pressure distorts more layers, a message then delivered to the brain.

Lamellar or Pacinian Corpuscle

500

An increase / decrease of ____ ions outside the neuron makes the cell's RMP more positive (depolarized). [Write both IN or DE   and the ion type!]

Increase in K+