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4 years ago

Is the heart an organ or muscle?

Biology

2 answers:

Karolina [17]4 years ago

7 0

Answer: Muscle

Explanation:

Your heart is actually a muscular organ. An organ is a group of tissues that work together to perform a specific function. In the case of your heart, this function is pumping blood throughout your body. Additionally, the heart is largely made up of a type of muscle tissue called cardiac muscle.

Artist 52 [7]4 years ago

5 0

Answer:

it's a muscle

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Answer:

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Explanation:

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zloy xaker [14]

Answer:

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Explanation:

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3 years ago

Bio 254 - Pre-Class Assignment 1

Trava [24]

Question 1:

Answer:

The "first line of defence" in innate immunity is "Physical and chemical barriers".

Explanation

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Question 2:

Answer:

Histamine kinins, and interleukins are examples of inflammatory mediators.

Explanation:

Inflammatory mediators are identified in inflammatory bowel disease IBD.These mediators play an vital role in the clinical and pathologic characteristics of the disorders. Cytokines, that are released by macrophages in due to antigenic stimuli, are binded different receptors and produce endocrine, autocrine and paracrine effects. Interleukins are a subset of a large group of 'cellular messenger molecules' called cytokines that modulates the cellular behaviour. Interleukins are not stored within cells like cytokines but they are released immediately, in response to a stimulus. Once an interleukin has been secreted, it moves to the target cell and binds to it through a receptor molecule on the surface of the cell . This interaction triggers a sequence of signals in the target cell that ultimately leads to the alteration in the behaviour of the cell.

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3 years ago