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.
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.
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.
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.
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.
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:
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.
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.
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.
Thyroid diagram. The below diagram depicts thyroid gland and larynx. Thyroid is an endocrine gland located in the head and neck. The thyroid gland and parathyroid glands are a group of endocrine glands located in the base of the neck below Adam’s apple. Thyroid consists of two lobes connected by an isthmus.
Thyroid produces thyroid hormones, which influence the metabolic rate and protein synthesis. These hormones also impact numerous areas of development and overall person’s well-being. Thyroid hormones, T3 and T4, are synthesized from iodine and tyrosine. In addition, the thyroid makes calcitonin, a hormone that participates in calcium homeostasis.
Liver Diagram – Liver Anatomy – Human liver – Liver anatomy with labels – Human liver anatomy consists of the following parts left lobe, right lobe, hepatic portal vain, hilus, galibladder. Human liver anatomy.
Endocrine System Diagram – Endocrine System Chart – Endocrine System diagrams depict various parts of the human endocrine system. Endocrine anatomy consists of the following parts: thyroid, parathyroids, testis (male), hypothalamus, pituitary gland, ovary (female). The diagram below also explains how each of the parts of this system contributes to the human health.
Mouth Diagram – Mouth Chart – Human mouth anatomy diagram displays various parts of the human mouth including lips, tongue, gum, palate, tonsil, trachea, esophagus, mandible and others. Mouth anatomy diagram below shows both the mouth view and the side view of the mouth and throat. Lateral and frontal views of the mouth.
Blood Flow Diagram – Blood Flow Chart – Circulatory System Diagram – Blood Flow diagrams depict the flow of blood in the human body. The below chart displays the human circulatory system and the anatomy of the human body as it pertains to the movement of blood. The following organs are key in the circulatory system: heart, arteries, aorta, veins, lungs, capillaries of various organs.
Lungs Diagram – Lungs Chart – Diagram of the lungs depicts various parts of this vital human organ responsible for breathing and oxygen intake. Lungs diagram below displays human lungs anatomy consisting of bronchi, lobes, alveoli, diaphragm, bronchioles, pleura, trachea. Human lungs explained.
Abdominal Diagram – Abdominal Chart – Stomach Diagram – Human Abdominal – Abdominal Anatomy – Abdominal diagrams depict parts of the human stomach including liver, large intestine, small intestine, appendix, esophagus, bladder and other abdominal anatomy parts.
Human Hand – Hand Diagram – Hand Chart – As depicted on the below diagram, a human hand consists of the following joints and bones: metacarpal, carpometacarpal, phalanx (proximal, distal, middle), interphalangeal joints and other parts.
Cardiovascular System – Cardiovascular System Diagram – Cardiovascular System Chart – Cardiovascular system consists of the human organs carrying blood through the body including human heart, veins, arteries and aorta. The diagram contains labels describing each part of the system.