Anatomy-Chapter 12
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| The heart is located in the | thoracic cavity between the lungs
🗑
|
||||
| The thoracic cavity between the lungs is called the | mediastinum
🗑
|
||||
| The heart is enclosed in the | pericardial membranes
🗑
|
||||
| The outermost layer of the pericardial membranes is the | fibrous pericardium
🗑
|
||||
| Lining the fibrous pericardium is the | parietal pericardium
🗑
|
||||
| On the surface of the heart muscle is the | visceral pericardium
🗑
|
||||
| The visceral pericardium is often called the | epicardium
🗑
|
||||
| Between the parietal and visceral pericardial membranes is | serous fluid
🗑
|
||||
| Myocardium | Cardiac muscle
🗑
|
||||
| The chambers of the heart are lined with | endocardium
🗑
|
||||
| The important physical characteristic of the endocardium is not its thinnes, but rather its | smoothness
🗑
|
||||
| The upper chambers of the heart are the | right and left atria
🗑
|
||||
| Interatrial septum | the common wall of the myocardium
🗑
|
||||
| The lower chambers of the heart are the | right and left ventricles
🗑
|
||||
| The right and left atria have _______ walls | thin
🗑
|
||||
| The right and left ventricles have ______ walls | thick
🗑
|
||||
| The ventricles are separated by teh | interventricular septum
🗑
|
||||
| The atria receive blood from the | body or lungs
🗑
|
||||
| The ventricles pump blood to either the | lungs or body
🗑
|
||||
| Caval veins | return blood from the body to the right atrium
🗑
|
||||
| The superior vena cava carried blood from the | upper body
🗑
|
||||
| The inferior vena cava carries blood from the | lower body
🗑
|
||||
| From the right atrium, blood will flow through the _______ _____________ _____ into the right ventricle | right atrioventricular (AV) valve
🗑
|
||||
| The left atrium receives blood from the lungs by the way of four | pulmonary veins
🗑
|
||||
| Blood flows into the left ventricle through the | left atrioventricular (AV) valve
🗑
|
||||
| The left atrioventricular (AV) valve is also called the | mitral valve or bicuspid valve
🗑
|
||||
| Another function of the atria is the production of a hormone involved in | blood pressure maintenance
🗑
|
||||
| When the walls of the atria are stretched by increased blood volume or blood pressure, the cells produce | atrial natriuretic peptide (ANP)
🗑
|
||||
| Atrial natriuetic peptide is also called | atrial natriuertic hormone (ANH)
🗑
|
||||
| ANP decreases | the reabsorption of sodium ions by the kidneys
🗑
|
||||
| At the junction of a large pulmonary artery and the right ventricle is the | pulmonary semilunar valve
🗑
|
||||
| Papillary muscles | columns of myocardium projecting into the lower part of the right ventricle
🗑
|
||||
| Chordae tendineae | Strands of fibrous connective tissue that extend from the papillary muscles to the flaps o the tricuspid valve
🗑
|
||||
| The left ventricle pumps blood to the body through the | aorta
🗑
|
||||
| The aorta is the ________ artery of the body | largest
🗑
|
||||
| At the junction of the aorta and the left ventricle | aortic semilunar valve
🗑
|
||||
| The right side of the heart receives _________ blood from the body | deoxygenated
🗑
|
||||
| The left side of the heart receives _________ blood from the lungs | oxygenated
🗑
|
||||
| Ischemic | deprived of its blood supply
🗑
|
||||
| Infarct | an area of necrotic (dead) tissue
🗑
|
||||
| Myocardial inarction is commonly called a | heart attack
🗑
|
||||
| Systole | contraction
🗑
|
||||
| Diastole | relaxation
🗑
|
||||
| Heart murmur | An extra sound during a heart beat, caused by the valves not closing properly
🗑
|
||||
| The natural pacemaker of the heart is the | SA node
🗑
|
||||
| From the SA node, impulses for contraction travel to the | atrioventricular (AV) node
🗑
|
||||
| Atrioventricular bundle | The pathway for the electrical impulses to travels from the atria to the ventricles
🗑
|
||||
| The atroventricular bundle is also called the | bundle of His
🗑
|
||||
| Bundle branches | branches that come off of the atrioventricular bundle
🗑
|
||||
| From the bundle branches, electrical impulses travel along | Purkinje fibers
🗑
|
||||
| Arrhythmias are | irregular heartbeats
🗑
|
||||
| ventricular fibrillation | a very rapid and uncoordinated ventricular beat that is totally ineffective for pumping blood
🗑
|
||||
| A normal resting heart rate for an adult is | 60 to 80 beats per minute
🗑
|
||||
| Bradycardia | A resting heart rate of less than 60 bpm (except for athletes)
🗑
|
||||
| Tachycardia | a prolonged or consistent rate greater than 100 bpm
🗑
|
||||
| A child's normal heart rate may be as high as | 100 bpm
🗑
|
||||
| An infant's normal heart rate may be as high as | 120 bpm
🗑
|
||||
| A near-term fetus' normal heart rate may be as high as | 140 bpm
🗑
|
||||
| Stroke volume | The amount of blood pumped by a ventricle per beat
🗑
|
||||
| Cardiac output= | stroke volume x pulse (heart rate)
🗑
|
||||
| Starling's Law of the heart states | that the more the cardiac muscle biers are stretched, the more forcefully they contract.
🗑
|
||||
| The _______ of the brain contains the cardiac center | medulla
🗑
|
||||
| The two cardiac centers of the brain are the | accelerator center and the inhibitory center
🗑
|
||||
| Pressoreceptors in the carotid sinuses and aortic sinus detect | changes in blood pressure.
🗑
|
||||
| Chemoreceptors in the carotid bodies and aortic body detect | changes in oxygen content of the blood
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
akikoandpoog
Popular Science sets