Cardiovascular system (1)

Cardiovascular system (1)

Easy and simple questions in anatomy, physiology, embryology of cardiovascular system

published on August 272 responses 0 5.0★ / 5

1.Elastic artries..

1.Possessing clear internal and external
elastic laminae
2.found minly near the heart
3.contract during venticular systole to help
propel blood forword
4.have thin tunica media
5.have diameter range from 1 cm to 0.3 cm

2.Vasa vasorum are

A. Large blood vessels
B. Found in tunica intima
C. Not branching vessels
D. Found tunica adventitia
E. Norish intima directly

3.The tunica media is absent in

A. Veins
B. Aorta
C. Capillaries
E. None of the above
D. Large arterioles

4.Portal system are

A. Arterial only
B. Venous only
C. Only found between the small intestine
and liver
D. Formed when a blood vessel is situated
between two capillaries bed
E. Found in fetal blood circulation

5.The cardiac plexuses of nerves include

A. Sympathetic fibers
B. Parasympathetic fibers
C. Sensory fibers
D. Somatic motor fibers
E. A, B and C only

6.The Coronary sinus receives blood from the veins listed below, except

A. Small cardiac vein
B. Anterior cardiac veins
C. Middle cardiac vein
D. Oblique vein of the left atrium
E. Great cardiac vein

7.Regarding the right Coronary artery, select one best answer

A. It artries from the anterior aortic sinus
B. It gives off a posterior interventicular
branch
C. It supplies the right atrium
D. It shares in supplying SA node
E. All of the above

8.In the heart the following statement are true, except

A. Sympathetic nerves dilate the Coronary
arteries
B. The foramen ovale is the gap between
the septum primum and the
endocardialcushions
C. The sinus vensus becomes incorporated
into the right atrium
D. Folding of the heart tube occurs on days
32-38
E. . Ductusvensous in fetal circulation
becomes ligmentumteres after birth

9.Regarding congenital anomalies of the heart and great vessels

A. Transposition of the great vessels is due
to aorticpolmunary septum runs a spiral
course insted of its straight course
B. Tetralogy of fallot results in a smaller
stenotic aorta
C. In dextrocardiada, the primitive heart tube
folds to the left
D. Contraction of aorta produces notching
of the upper borders of the ribs
E. Patent ductusarterious PDA causes right
to left shunt

10.The chamber forming most of the sternocostal surface of the heart is

A. Right ventricle
B. Left atrium
C. All four chambers contribute equally
D. Left ventricle
E. Right atrium

11.The right border of the heart is formed by the

A. Right ventricle
B. Right and left atria
C. Right atrium
D. Right and left ventricle
E. Left atrium

12.Posterior wall of the transverse sinus of the pericardium

A. Right atrium
B. Ascending aorta
C. Inferior vena cava
D. Pulmonary trunk
E. Right ventricle
Maybe it's none of the above

13.All of the following structures are parts of the right atrium except

A. Crista terminalis
B. Limbus fossa ovalis
C. Valve of inferior vena cava
D. Trabeculacarneae
E. Fossa ovalis

14.Regarding the left ventricle all are true except

A. It forms the apex of the heart
B. It contains the moderator band
C. It has two Papillary muscles
D. It forms left 1/3 of the sternocostal
surface of the heart
E. It forms left 2/3 of the diaphragmatic
surface of the heart

15.Of the following, the heart sound best heard in the second right intercostal space near the broder of the sternum is

A. Tricuspid valve
B. Pulmonary valve
C. Mitiral valve
D. Aortic valve
E. None of the above is heard at this point

16.All these are correct about fibrous pericardium, except

It is made up of dense and loose connective
tissue,
Anteriorly, It is attached to the posterior
surface of the sternum by the
sternopericardial ligaments.
Superiorly, It continuous with the tunica
adventitia of the great vessels of the heart
It is the most superficial layer of the
pericardium
It contains a thin film of fluid that enables
the heart to move and beat in a frictionless
environment.

17.Pectinate muscle..

A. Found in right and left atria
B. Originate from crista terminalis
C. Found on the inner wall of both ventricles
D. Both A and B are correct
E. Both B and C are correct

18.Regarding the aorta, choose the correct answer

Originate from left atrium
The ascending aorta begins at the opening
of the pulmonary valve
The aortic arch loops over the left
pulmonary artery and the bifurcation of the
pulmonary trunk
All of the above are correct
None is correct

Which of the following consists of inelastic dense irregular connective tissue?

Parietal layer of pericardium
Serous pericardium
Fibrous pericardium
Epicardium
Pericardial cavity

This marks the boundarybetween the ventricles...

Coronary sulcus
Anterior interventricular sulcus
Posterior interventricular sulcus
Coronary sulcus and posterior
interventricular sulcus
Anterior and posterior interventricular
sulcus

The groove that separates the upper and lower champers of the heart is..

Primitive groove
Fossa ovale
Coronary sulcus
Limbus of fossa ovale
None of these is correct

This consists of mesothelium and connective tissue..

Epicardium
Myocardium
Endocardium
Pericardial cavity
Fibrous pericardium

Through which structure does blood pass from the right atrium to the right ventricle?

Bicuspid valve
Interventricular septum
Tricuspid valve
Mitral valve
Ascending aorta

Stimulation of this nerve reduces heart rate..

Cardiac accelerator nerve
Hypoglossal nerve
Medulla oblongata nerve
Vagus nerve
Phrenic nerve

This vessel distributes oxygenated blood to the myocardium..

Coronary artery
Coronary vein
Right ventricle
Left auricle
Myocardial vein

This is the layer that protects the heart..

Epicardium
Parietal layer
Myocardial tissue
Mediastinum
Endocardium

To the which side of the body is the apex of heart pointed?

At the midline
To the left
To the right
Different for males and females
Posteriorly

In this disorder the aortic valve is narrowed..

Aortic insufficiency
Rheumatic fever
Mitral valve prolapse
Aortic stenosis
Aortic regurgitation

This is the mass of tissue from the sternum to the vertebral column between the lungs..

Epicardium
Parietal layer
Pericardial tissue
Mediastinum
Fibrous cardium

This part of the brain regulates heart rate..

Cardiac accelerator nerves
Chemoreceptors
Medulla oblongata
Vagus nerve
Proprioceptors

This is used to reduce the friction between membranes of the heart..

Epicardium
Endocardium layer
Pericardium
Pericardial (serous) fluid
Pericardial cavity

In a fetus, this structure temporarily shunts blood from the pulmonary trunk into the aorta..

Fossa ovalis
Foramen ovale
Trabeculae carnae
Descending aorta
Ductus arteriosus

Cardiac muscle fibres electrically connect to neighbouring fibres by

Desmosomes
Intermediate discs
Gap junctions
Contractile fibres
Chordae tendinae

These extend into the auricle..

Pectinate muscles
Interatrial septum
Coronary sulcus
Ventricle
Chordae tendinae

What types of tissue comprises the vavles of the heart?

Dense regular connective tissue
Dense irregular connective tissue
Areolar connective tissue
Hyaline cartilage
Cardiac muscle tissue

What makes up a cardiac muscle

- single central nucleus
- contraction involves shortening of
sarcomeres
- rely on cellular respiration to obtain energy
to contract
Has striations intercalated disks
All of the above

This is used to increase the capacity of the atrium..

Ventricle
Coronary sulcus
Fossa ovalis
Interatrial septum
Auricle

Which layer consists of cardiac muscle tissue?

Epicardium
Pericardium
Myocardium
Endocardium
Hypocardium

This heart structure carries deoxygenated blood..

Left atrium and ventricle
Left atrium
Right atrium and ventricle
Right ventricle
Left atrium and right ventricle

The largest blood vessel in the body..

Esophagus.
Artery.
Capillary.
Aorta.
Veins.

What divides the left side of the heart from the left side?

Septum.
Atrium.
Ventricles.
Wall.
Champers.

The right side of the heart pumps the blood _____ the heart ______ the lungs.

To, from
From, to
To, to
From,from

Mohammed live in a place with cold weather Although he has a jacket on, he is still cold. How can his circulatory system help keep her warm?

Increase blood volume
Regulation of body temperature by sweating
The arterioles at the surface of his skin
vasodilate
The arterioles at the surface of his skin
vasoconstrict
None of the above

What color are white blood cells

White
Red
Yellow
Pink
Colorless

What is the circulatory system?

Your body's muscles.
Your body's nerves.
Your body's blood transporting system

White blood cells contain a _______, while red blood cells do not.

Nucleus.
Brain.
Red color.
Hemoglobin

Ahmed is a tennis player.. He is working very hard on the court. In general, what is the function of her heart

To create red blood cell through
hematopoises
To oxygenated blood while removing carbon
dioxide
To generate ATP for muscular activitiy
To ensur that oxygen is consistently
supplied to body tissue like his muscles

In these answers what is wrong about Blood capillaries

Present every where in the body
Have rounded regular lumen
Lined with stratified squamous epithelium
Have basement membrane surrounds the
endothelium
No wrong answer

What is the visceral layer of the serous pericardium?

A. Endocardium
B. Pericardium
C. Epicardium
D. Both B and C
E. None of the above

The semilunar and atrioventicular valve develop from

Specialized muscle between the chambers
Localized proliferation of tissue around the
orifices of future
Primitive tube
Closing of Fossa ovale after birth
None of the above