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STatiana [176]
4 years ago
13

What is the purpose of the pericardial sac that surrounds the heart in mammals

Biology
1 answer:
Nitella [24]4 years ago
6 0

Answer:

Pericardial sac has protective tole

Explanation:

Pericardial sac or pericardium is a fibrous tissue that surrounds the heart. It has two coats:

  1. the outter coat-parietal pericardium
  2. the inner coat-visceral pericardium or epicardium which is double-layered and contains pericardial fluid between those two layers (pericardial fluid is necessary as a lubricant for the heart movement).

Besides lubrication, percardium also protects heart from infections, fixes it and limits its movements.

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Help me pleasee........​
Gre4nikov [31]

Answer:

Second Question:

If a doctor prescribes antibiotics, its because the you have developed a bacterial infetcion on top of your flu or HIV for example.

Explanation:

4 0
3 years ago
__________ is an expression of biological positivism that stresses the interaction between biological factors within an individu
Finger [1]

Answer:

Criminological behavior is an expression of biological positivism.

Explanation:

It is a theory that is caused by some chemical imbalance which takes place in brain that may be cause by biological or genetic.

Positivism is a state that is very confident of something.

It refers to the application of scientific method for explaining human behavior. Criminology were primarily explain criminality by identifying the physical state and characters, genetic difference, which use to discriminate between criminals and non criminals.

This theory is called as psychological positivism and social positivists

7 0
3 years ago
Sketch what you observe when examining the onion root tip using the low power lens in the high-power lens. Label to sketches and
olga2289 [7]
Wait, you have to sketch this stuff? Then YOU need to sketch it. No offence, just no one is gonna sketch this for you. 
6 0
3 years ago
An older adult client with a diagnosis of left-sided stroke is admitted to the facility. To prevent the development of disuse os
worty [1.4K]

This question is incomplete. Here´s the complete question.

A 70-year-old client with a diagnosis of left-sided stroke is admitted to the facility. To prevent the development of disuse osteoporosis, which objective is most appropriate?

a) Promoting range-of-motion (ROM) exercises

b) Promoting weight-bearing exercises

c) Maintaining protein levels

d) Maintaining vitamin levels

Answer: b) Promoting weight-bearing exercises

Explanation:

The bone is a living tissue that becomes stronger with exercise.  Weightlessness and immobility can lead to bone loss.  

Weight-bearing exercises are those that force us to work with gravity, like walking, hiking, jogging, climbing stairs, playing tennis, and dancing. They can help prevent disuse osteoporosis.

On the other hand, swimming and bicycling would be examples of non-weight-bearing exercises.

4 0
4 years ago
What happened to the indigenous“medicine man” after Dr. Campbell showed up and why?
Alex

Answer:

The indigenous 'medicine man' flees seeing Dr. Campbell because both Dr Campbell and the medicine man, were in conflict with each other.

Explanation:

'Medicine Man' is a movie directed by John McTiernan, starring Sean Connery(as Dr. Robert Campbell) and Lorraine Bracco(as Dr. Rae Crane). The film is about Dr. Campbell who sets into the forest of Amazon and finds the cure to cancer.

The Medicine man is the one who informed Dr. Campbell about the flowers containing 'ju-ju' (powers to heal). But after Campbell cured a little boy having gas by 'alka-seltzer', they both were in conflict of each other.

So, when Dr. Campbell showed up with the man and a little boy suffering from malignant neoplasms at the medicine man doorsteps, the indigenous medicine man flees from there.

6 0
3 years ago
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