1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
melisa1 [442]
3 years ago
15

The First Battle of Bull Run was considered

Medicine
2 answers:
Amanda [17]3 years ago
5 0

Answer:

D

Explanation:

loss for both sides with no clear winner.

almond37 [142]3 years ago
3 0

Answer:

b i think

Explanation:

You might be interested in
The icd-10-cm codes assigned by the medical coder are used to evaluate healthcare utilization study healthcare costs research th
katrin2010 [14]

Answer:

The ICD-10-CM codes assigned by the medical coder are used to evaluate healthcare utilization, study healthcare costs, research the quality of patient care, and establish the appropriate reimbursement rate.

Explanation:

The International Classification of Diseases (ICD)-10-Clinical Modification (CM) classifies and codes symptoms, diagnoses, and procedures performed in hospital care availed in the United States. The ICD-10-CM code provides healthcare information to the providers, policymakers and the payers which is used to determine the reimbursement amount, evaluate the quality of the healthcare provided and ways to improve, and improvise the healthcare delivery efficiency, monitor and regulate resources for proper utilization of service, and to reduce the overall healthcare costs.

6 0
3 years ago
Explain how neurons communicate. Include a description of the action potential and how the action potential is converted into a
suter [353]

Answer:

Action potentials and chemical neurotransmitters.

Explanation:

Neurons communicate with each other via electrical events called ‘action potentials’ and chemical neurotransmitters.  At the junction between two neurons (synapse), an action potential causes neuron A to release a chemical neurotransmitter.  The neurotransmitter can either help (excite) or hinder (inhibit) neuron B from firing its own action potential.

In an intact brain, the balance of hundreds of excitatory and inhibitory inputs to a neuron determines whether an action potential will result.  Neurons are essentially electrical devices. There are many channels sitting in the cell membrane (the boundary between a cell’s inside and outside) that allow positive or negative ions to flow into and out of the cell.  Normally, the inside of the cell is more negative than the outside; neuroscientists say that the inside is around -70 mV with respect to the outside, or that the cell’s resting membrane potential is -70 mV.

This membrane potential isn’t static. It’s constantly going up and down, depending mostly on the inputs coming from the axons of other neurons. Some inputs make the neuron’s membrane potential become more positive (or less negative, e.g. from -70 mV to -65 mV), and others do the opposite.

These are respectively termed excitatory and inhibitory inputs, as they promote or inhibit the generation of action potentials (the reason some inputs are excitatory and others inhibitory is that different types of neuron release different neurotransmitters; the neurotransmitter used by a neuron determines its effect).

Action potentials are the fundamental units of communication between neurons and occur when the sum total of all of the excitatory and inhibitory inputs makes the neuron’s membrane potential reach around -50 mV (see diagram), a value called the action potential threshold.  Neuroscientists often refer to action potentials as ‘spikes’, or say a neuron has ‘fired a spike’ or ‘spiked’. The term is a reference to the shape of an action potential as recorded using sensitive electrical equipment.

Neurons talk to each other across synapses. When an action potential reaches the presynaptic terminal, it causes neurotransmitter to be released from the neuron into the synaptic cleft, a 20–40nm gap between the presynaptic axon terminal and the postsynaptic dendrite (often a spine).

After travelling across the synaptic cleft, the transmitter will attach to neurotransmitter receptors on the postsynaptic side, and depending on the neurotransmitter released (which is dependent on the type of neuron releasing it), particular positive (e.g. Na+, K+, Ca+) or negative ions (e.g. Cl-) will travel through channels that span the membrane.

Synapses can be thought of as converting an electrical signal (the action potential) into a chemical signal in the form of neurotransmitter release, and then, upon binding of the transmitter to the postsynaptic receptor, switching the signal back again into an electrical form, as charged ions flow into or out of the postsynaptic neuron.

4 0
3 years ago
Early Homo is distinguished from the australopithecines largely by
borishaifa [10]

Answer:

The correct answer is option A. large cranial capacity.

Explanation:

Humans (genus Homo) are said to have descended from australopithecines ancestors found 2 to 3 million years ago. Early homo came after the australopithecines who were more similar to homo sapiens.

The major characteristics that distinguish early Homo from Australopithecus are early homo have a larger cranial capacity which is larger brain size and smaller dentition. This distinguish character is more because of their diet.

Thus, the correct answer is option A. large cranial capacity.

7 0
3 years ago
Contrast the actions of the sympathetic and the parasympathetic divisions of the autonomic system?
erik [133]

The autonomic nervous system is of two types: the sympathetic and the parasympathetic systems that is responsible for the mechanical and automatic functions in a human body.

<u>Explanation:</u>

The autonomic nervous system is of two types: the sympathetic and the parasympathetic systems that is responsible for the mechanical and automatic functions in a human body.

The parasympathetic nervous system is responsible for the digestion and relaxation of the body, it controls the homeostasis to keep the body in the right health, whereas the sympathetic nervous system helps in human body to react to things, to decide to whether to leave or fight the situation.

Parasympathetic nervous system helps the physical and mental system of the body to relax, whereas sympathetic nervous system erupts the conscious mind to be aware of the physical and mental motives.

7 0
3 years ago
Explain what happens when blood leaves the heart and reaches the alveoli in the lungs.
antoniya [11.8K]

Answer:

Oxygen passes quickly through this air-blood barrier into the blood in the capillaries. Similarly, carbon dioxide passes from the blood into the alveoli and is then exhaled.

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • The heart does it beat faster when asleep?
    9·2 answers
  • The first step leading to angiotensin Il production is the secretion of ______ by the kidneys
    9·1 answer
  • How do you cure a sore Throat
    8·2 answers
  • The ___________ raises the eyebrows and moves the scalp.
    5·1 answer
  • Explain a normal tracing in order of the electrocardiogram starting with the p wave
    14·1 answer
  • Difference between protein and protein
    15·2 answers
  • What would you say to a patient who says that the medication Dr. Thompson gave her last week made her sick
    11·1 answer
  • Which is the most likely reason that the solar, wind and geothermal resources are not more widely implemented?
    13·1 answer
  • What roles are included in nursing services? Check all that apply.
    9·2 answers
  • 1 gal of KCL solution by mixing 565 g of KCL in an appropriate vehicle. How many milliequivalents of K are in 15 ml of this solu
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!