Bio 1108 Ch 27 and 28 MC

Which division of the human nervous system carries signals to skeletal muscles?
motor system

Once the threshold potential is reached,
an action potential is inevitable

Which of the statement about resting potential is true?
The sodium-potassium pump contributes to the resting membrane potential

During transmission across a typical chemical synapse,
neurotransmitter molecules bind to receptors in the receiving cell’s plasma membrane.

A physician friend of yours is telling you about a patient with a head injury who suddenly stopped breathing. Your friend explains that the bony rim was pressing against the breathing center. You guess that the “bony rim” (whatever that is) must have been exerting pressure in the region of the
medulla oblongata and pons

Treatments for depression often include drugs that help correct imbalances in the levels of

What part of a neuron carries signals toward the part of the cell that houses the nucleus?

In all vertebrates, the brain consists of the
forebrain, midbrain, and hindbrain

One neurotransmitter associated with sleep, mood, attention, and learning is

The simplest animals to display cephalization and centralization of the nervous system are

The gap between transmitting and receiving neurons in a chemical synapse is known as the
synaptic cleft

You start to fall but then catch yourself, regaining your balance. Which of the following brain regions is responsible for the rapid coordination of the muscle activity that kept your from falling?

The signal that crosses a synapse is stopped when
the neurotransmitter is enzymatically broken down or transported back to the signaling cell.

When you are very nervous, perhaps before you must speak in front of your college class, you notice that your mouth is dry and your heart is racing, this is most likely due to stimulation by the
sympathetic division of your autonomic nervous system

Once an action potential is triggered, there is a
reversal of the membrane polarity with the interior of the cell becoming positively charged

Action potentials normally travel along an axon
away from the cell body

**Which of the following statements regarding the nervous system is false?
sensory neurons convey signals from the CNS to sensory receptors

Action potentials relay different intensities of info due to the
frequency of action potentials relative to the strength of the stimulus

The function of a sperm cells acrosome is to
carry enzymes that help the sperm penetrate the egg

Which of the following occurs during the process of labor?
positive feedback involving oxytocin and prostaglandins

When a chemical signal from a group of embryonic cells cause a different nearby group of cells to embark on a particular developmental course, the interaction between the two groups of cells is called

Which of the following structures contributes to the structure of the placenta as well as completely surrounding the embryo

**What does apoptosis do in humans
form fingers and toes

Know advantages and disadvantages of sexual and asexual reproduction
look it up

Which of the following hormones stimulates the growth of an ovarian follicle?
FSH follicle stimulating hormone

Which of the following process dominates the third trimester of human development
rapid growth

Another term for gestation

Which of the following generates the ATP that is required for movement of the sperms tail
a mitochondrion in the neck and middle piece

Which of the following options correctly lists the three stages of labor in the order which they occur
dilation, expulsion, delivery of the placenta

The embryo implants in the ____ of the uterus

Which of the following results from cleavage?
formation of more cells

Fertilization occurs where
top part of oviduct

When does the human blastocyst implant in the wall of the uterus
a week after conception

**Corpus lutum
look it up

Gastrulation- endoderm, mesoderm, ectoderm
look it up

reproductive systems of F and M
look it up

The basic unit of the nervous system is a specialized cell called the neuron (Murre, 1992). It is important to understand neurons because they undoubtedly hold the secrets of how the brain works and in turn the nature of human …

The basic unit of the nervous system is a specialized cell called the neuron (Murre, 1992). It is important to understand neurons because they undoubtedly hold the secrets of how the brain works and in turn the nature of human …

The Central Nervous System (CNS) is composed of neurons or nerve cells. The brain, the spinal cord and the peripheral ganglia are intricately well-connected through these neurons. Each nerve cell has two principal parts: an axon and dendrites. Between these …

| Addiction psychology has made a great impact on the field of biological psychology, especially when it comes to subjects such as | |psycho-pharmacology. The abuse of prescription pain medicine has risen to an estimated 9 million in America alone …

in addition to neurons, the brain contains an even larger number of another cell type known as glia which of these is not one of the four important regions found in every neuron? glia WE WILL WRITE A CUSTOM ESSAY …

The thought of stepping up to reach stimulates the frontal lobe of the brain which controls voluntary muscle movements. An action potential is carried by upper motor neurons down descending nerve tracts of the central nervous system to synapse with …

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