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Dafna1 [17]
3 years ago
5

From 1950 to 2050 in the U.S., the proportion of people age 65 and over in the population is expected to:

Medicine
2 answers:
Vedmedyk [2.9K]3 years ago
8 0
Yeah I agreew them ^
Virty [35]3 years ago
5 0
A decline slightly I am almost positive
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1. You've found the body of someone who looks like they have been
Anni [7]

Answer:

Welcome

Explanation:

First, I would ask the question Was this victim stabbed to death. Second, I would conduct research to determine wound locations, directions, sizes, and distinguishing marks. Third, I would determine how I think the person was stabbed and with what kind of weapon. Fourth, I would test my hypothesis and predictions by replaying it at the lab to see if my results match those of the victim. Fifth, I would review my hypothesis and evidence and come to my conclusion. Last, I would share my results with the prosecutor and in my report

5 0
2 years ago
Which of the following is true regarding the general exercise prescription recommendations for weight loss?
MariettaO [177]

Answer:

The best answer to the question: Which of the following is true regarding the general exercise prescription recommendations for weight loss, would be, D: Resistance training is a recommended supplemental component of an aerobic exercise program for those wanting to lose or maintain weight.

Explanation:

In general terms, the process of weight loss and weight maintenance is a pretty complex one because not all bodies respond in the same way, especially when it comes to training. However, in general terms, although frequency, and heart rate ranges, are important, probably the most important thing is the mixture of resistance training and aerobic exercise, in a specific range of time, to maximize the body´s capabilities of fat consumption and metabolism.

7 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
a nurse is caring for a client who is has a pulmonary embolism and has a new prescription for enoxaparin 1.5mg/kg/dose subcutane
yaroslaw [1]

The initial few hours following an embolism are the most dangerous for complications or death. 167 mg should the nurse administer per dose.

<h3>What is meant by pulmonary embolism?</h3>

A blood clot in a lung artery blocks blood flow to a portion of the lung, resulting in a pulmonary embolism (PE). Most frequently, blood clots begin in the legs, move through the right side of the heart, and enter the lungs. DVT is the medical term for this (DVT).

A pulmonary embolism may disappear on its own, but with the right diagnosis and care, it is rarely lethal. However, if untreated, it can become serious and result in other health issues, even death. An embolism in the lungs can: harm the heart.

The initial few hours following an embolism are the most dangerous for complications or death. A second PE happening within six weeks of the first one is also highly likely. Because of this, treatment is required right away and must last for roughly three months.

To learn more about pulmonary embolism refer to:

brainly.com/question/12757175

#SPJ4

6 0
1 year ago
The expanded distal end of the fibula is called the
evablogger [386]

Answer:

lateral malleolus

5 0
2 years ago
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