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The Human Heart

Created by

@HealthyFlashback

Podcast Beta

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Match the location of the heart with the corresponding part of the body:

Between the lungs = In the thoracic cavity Towards the left of the sternum = In the thoracic cavity In the abdominal cavity = Below the diaphragm In the pelvis = Behind the urinary bladder

Match the function of the heart with the corresponding activity:

Pumping blood = Delivering oxygen to cells Maintaining blood pressure = Circulating nutrients Pumping hormones = Regulating body temperature Pumping glucose = Removing waste products

Match the type of circulation with the corresponding part of the body:

Pulmonary circulation = Lungs Systemic circulation = Brain and other organs Coronary circulation = Heart muscle Portal circulation = Liver and digestive system

Match the characteristic of the heart with the corresponding description:

Muscular organ = Delicate and fragile Size of a clenched fist = Large and imposing Robust and hardworking = Weak and inefficient Derived from ectodermal germ layer = Derived from embryonic mesodermal germ layer Signup and view all the answers

Match the component delivered by the heart with the corresponding function:

Oxygen = Energy production Hormones = Regulation of body functions Glucose = Energy storage Nutrients = Building and repairing tissues Signup and view all the answers

Match the organ with the corresponding function:

Heart = Pumping blood throughout the body Lungs = Exchanging oxygen and carbon dioxide Liver = Detoxifying the body Stomach = Digesting food Signup and view all the answers

Match the type of organism with the corresponding characteristic of the heart:

Humans = Pumps blood throughout the body Invertebrates = Has a heart-like pumping organ Vertebrates = Has a two-chambered heart Mammals = Has a four-chambered heart Signup and view all the answers

Match the term with the corresponding definition:

Thoracic cavity = Space between the lungs Systemic circulation = Circulation of blood throughout the body Pulmonary circulation = Circulation of blood to the lungs Circulation = Movement of blood throughout the body Signup and view all the answers

Match the function of the heart with the corresponding benefit:

Pumping blood = Replenishing oxygen to cells Maintaining blood pressure = Regulating body functions Circulating nutrients = Supporting growth and development Delivering hormones = Regulating metabolism Signup and view all the answers

Study Notes

Introduction to the Human Heart

The human heart is a muscular organ responsible for sustaining life, with four chambers, and is approximately the size of a clenched fist.
It functions throughout a person's lifespan and is one of the most robust and hardest working muscles in the human body.

Position of Heart in Human Body

The human heart is located between the lungs in the thoracic cavity, slightly towards the left of the sternum (breastbone).
It is derived from the embryonic mesodermal germ layer.

Function of Heart

The primary function of the heart is to maintain a constant flow of blood throughout the body, replenishing oxygen and circulating nutrients among cells and tissues.
The heart pumps blood throughout the body, delivering oxygen, hormones, glucose, and other components to various parts of the body.
It ensures adequate blood pressure is maintained in the body.
There are two types of circulation within the body: pulmonary circulation and systemic circulation.