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worty [1.4K]
3 years ago
12

The heart is situated in the ____ surrounded by the pericardial sac.

Medicine
2 answers:
Irina-Kira [14]3 years ago
5 0
Mediastinum is the answer
galben [10]3 years ago
3 0

Answer:

mediastinum

Explanation:

Within the mediastinum, the heart is separated from the other mediastinal structures by a tough membrane known as the pericardium, or pericardial sac, and sits in its own space called the pericardial cavity. ... The heart is located within the thoracic cavity, medially between the lungs in the mediastinum.

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Intrapulmonary pressure in the ________.
Readme [11.4K]

Answer:

The correct answer is option B- pressure within the alveoli.

Explanation:

Intrapulmonary pressure is the pressure within the lungs especially in the alveoli of the lungs so is also known as "intra-alveolar pressure".

This pressure helps in the breathing process as :

1. During inspiration - The thoracic cavity volume increases due to which the intra-pulmonary pressure becomes less than the atmospheric pressure which causes the lungs to inhale about 500 ml of air.

2. During expiration- the thoracic volume decreases which cause the intra-pulmonary pressure larger than atmospheric pressure which causes the lungs to exhale the air.

Thus, option B- pressure within the alveoli is the correct answer.

7 0
3 years ago
Select the correct statement about the function of myocardial cells. A. Each cardiac muscle cell is innervated by a sympathetic
Evgen [1.6K]

Answer:

Option-D

Explanation:

The myocardial cells form the cardiac muscle present in the heart. The heart receives its signal from the autonomic nervous system but not all the cells receive the signals.

The SV and AV node present in the upper heart produces the potential for the contraction. The action potential gets transferred through the cell and finally reach the lower ventricle through Purkinje fibres.

This allows the contraction of both the ventricles simultaneously and sows that the heart cells contract simultaneously.

Thus, Option-D is the correct answer.

8 0
3 years ago
Your healthy daily activity strengthens your muscles and heart. According to the integrated wellness paradigm, what other benefi
chubhunter [2.5K]
Other benefits you receive from physical activity is that it strengthens your mind, slows aging and helps you have more of a positive feeling.
5 0
3 years ago
what should a nurse do when making an entry in a clients medical chart to ensure that the other members and healthcare team are
Blizzard [7]

Answer:

Making sure to get every peice of information she can from the patient whether that be medical history, age, height, full name, what medication the patient is currently on and what they have taken in the past, any health disorders, diabetes, or previous injuries..

8 0
3 years ago
What are the tiny functioning units found within the cytoplasm called?
SCORPION-xisa [38]

Answer:

C. Organelles

Explanation:

A cell is the structural and functional unit of all the living organisms. Every eukaryotic cell contains the tiny units located in the cytoplasm of a cell is called organelles. Examples of organelles are the nucleus, mitochondria, chloroplast, endoplasmic reticulum, Golgi apparatus.

These organelles are bounded by a unit membrane, they perform a specific function for the cell.

For example, the nucleus controls the activities of the cell, mitochondria works as a powerhouse of the cell, chloroplast present in green plants that performs the function of photosynthesis.  

3 0
4 years ago
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