Brain Diagram | Brain Chart

Brain Diagram – Brain Chart – Diagram of a Brain.  Diagram of a human brain labelled.  Brain diagram showing different parts of a brain with labels.  Human brain diagram.  Parts of the human brain as studied in medicine. Human brain. Components of a brain.

Brain Chart - Brain Diagram - Human Brain

Brain Chart – Brain Diagram – Human Brain

Source: IRSC.edu

Brain Diagram | Brain Chart

Human Organs – Body Organs Systems

Human Organs – Human Organs Diagram – Body Organs – Human organs systems – Human body systems – Diagram showing various human anatomy and body systems including skeletal system, muscular system, nervous system, digestive system, respiratory system, circulatory system, etc.  Human organ systems diagram.

Body Organs Systems
Source: Cloudfront

Human Organs – Body Organs Systems

Nerve Cell

Nerve Cell Diagram below is a typical illustration of this type of a human cell that makes up the cells in the nervous system. Nerve cell parts include nucleus, soma, dendrite, axon, myelin sheath, axon terminal, node of ranvier. This composition of the cell ensures that the neuron is functional with chemical signals transmitted to neighboring neurons.

All nerve cells respond to the external stimulus with an electric discharge that produces an electrical pulse of about 50-70 millivolts. This pulse is often referred to us an action potential. The electrical pulse travels down axon, which is the the fiber-like extension of the nerve cell. The speed of the impulse is about few tens of a meters per second and is a function of the fiber size. The transmission can be sent to a nearby nerve cell via a chemical neurotransmitter as soon as it gets to the axon terminal bundle. These types of nerve cells can be found all over the human body.

Nerve Cell

Heart Diagram – Human Heart

Human heart is a key organ in the circulatory system responsible for pumping blood through blood vessels. The heart is found slightly to the left of the center of the chest. As shown in the below diagram, it consists of four chambers: left atrium, right atrium, left ventricle and right ventricle. Multiple valves found in the heart ensure that blood flows only one way through the heart. The lining of the heart consists of three layers: endocardium, myocardium and epicardium.

The blood low in oxygen flows into the right atrium from the superior and inferior vena cavae and further flows into the right ventricle. From here it is pumped into lungs where it releases carbon dioxide and absorbs oxygen. Blood high in oxygen content flows back to the left atrium and then passes through the left ventricle. It is then pumped out via the aorta. Aorta and other arteries transport blood away from the heart. The blood also carries nutrients and waste between the digestive system and various body organs.

The heart is essentially a muscle that contracts at a resting rate of ~72 beats per minute. The lower the heart rate when resting, the better for the health and individual’s longevity. The heart rate may increase during exercising. However, regular exercises ensure that the rate slows down in the longer term.

The heart diagram below lists key parts of the heart.
heart diagram

Heart Diagram – Human Heart

Eye Colors

Eye Colors: the colors of a human eye are dependent on the two main characteristics. The first characteristic that determines eye color is the pigmentation of the eye’s iris, the second is the frequency of light scattering in the stroma of the iris. Iris varies from light brown to black, the blue and green pigments are not found in the human iris, rather these colours are a product of lighting conditions.

The eye colors are based on genetics: blue, grey, amber, hazel, brown, green, black. Blue, grey and green eyes are rare; most of world’s population has brown eyes. The eye color chart below depicts various types of eyes. Many now use contact lenses of different colours to alter their appearance.

eye colors

eye colors

Eye Colors

Circulatory System

Circulatory System is responsible for delivering oxygen, water and nutrients to various body systems and cells while also transporting waste away (e.g. carbon dioxide). The circulatory system consists of the heart, blood vessels such as aorta, vein, ventricle, capillaries and blood itself.

The heart is essentially a muscle that pumps blood ensuring its movement throughout the body. The heart is located a bit to the left from the center of one’s chest. Well functioning circulatory system depends on a health heart, which in turn is dependent on regular exercises, healthy eating and not smoking.

The blood vessels carry blood throughout the body. The blood flows away from the heart through arteries. Arteries carry blood high in oxygen content. Veins on the other hand carry blood towards the heart. Capillaries are small blood vessels that connect arteries to veins. Nutrients, oxygen, water and carbon dioxide pass through the capillary walls.

The blood is the red substance that transports all the above throughout the body cells. The blood consists of red blood cells, white blood cells, platelets and plasma. Red blood cells carry oxygen from the lungs towards body cells and deliver carbon dioxide back. Carbon dioxide is than exhaled from the lungs. White blood cells help the body fight infections by destroying germs. Platelets are cells that stop bleeding by forming a natural seal to the damaged blood vessel. The red blood cells, white blood cells and platelets are formed by the bone marrow, which is a soft tissue in the bones. Plasma is the liquid part of the blood, produced in the liver, which makes about half of the blood content. All the above make up the circulatory system presented below:

circulatory system diagram

Circulatory System

Digestive System Diagram

Digestive System Diagram – The digestive system of a human consists of the following anatomy parts: stomach, intestines, bladder, rectum, anus, liver, colon, and other organs.  High quality printable digestive system chart.  Human digestive system.

Digestive System Diagram

Also see other human organ systems Source: CK12, Methiscool

Digestive System Diagram

Muscular System Diagram

The muscular system diagram depicts the anatomy of various human muscles including biceps, tripezius, deltoid, triceps, abdominis (abs) and other key muscle groups. While multiple groups exists, overall, there are 3 different types of muscle tissues: skeletal, visceral and cardiac.

Skeletal muscles are attached to the bones, often via a joint with muscles used to bring the bones closer together. They are usually attached to the skeleton. These muscles are also controlled consciously by a human while performing such tasks as running, speaking and typing. The cells in these skeletal muscles are made of multiple progenitor cells coming together into the long and strong fibers. The diagram below summarizes skeletal muscles.

Visceral muscles are the weakest of all muscles and are a part of the organs and body systems such as blood vessels and stomach. They are used to move matter through the organ (e.g. blood, food, etc) and appear smooth and uniform when looking at the microscope. They are unconsciously controlled by the brain.

Cardiac muscle is located in the heart and pumps blood through the arteries. Similarly to visceral muscles, it is not controlled consciously; instead it stimulates itself while adjusting to the hormone levels. Cardiac tissue is very strong.

muscular system diagram

Muscular System Diagram

Nose Diagram

Nose diagram – Human nose helps one breathe, smell, and taste. The nose is the part of the respiratory tract that sits front and center on your face. The Human Nose is composed of bone and cartilage on the outside, is one of the most noticeable features of the human face.

Human nose anatomy consists of the following parts as shown in the below diagram: nasal vestibule, nasal cavity, frontal sinus, superior turbinate, middle turbinate, inferior turbinate, sphenoid sinus, nasopharynx, adenoid pad, eustiachian tube orifice and fossa of rosenmuller.

Nose Diagram

Ear Diagram – Ear Anatomy

Ear Diagram below shows the various parts of a human ear. Ear anatomy includes external, middle and inner parts.
The outside portion, called the outer ear includes pinna, a ridged cartilage, through which sound travels into the short tube called the external auditory canal. This canal goes all the way to the eardrum.

Sound waves vibrate the eardrum connected to the cochlea, part of the inner ear. Sounds are then converted into nerve impulses that are further conducted to the brain. The semicircular canals are attached to the nerves and cochlea in the inner ear and are filled with fluid. Their function is to communicate the position of the head and body’s balance to the brain. The eustachian tube allows fluid to flow from the middle ear into the throat.

Essentially, a human ear is a system consisting of three organs that work together on hearing and balance in conjunction with the nervous system. The diagram below displays the human ear anatomy.

ear-diagram

Ear Diagram – Ear Anatomy