Which Is The Second Largest Cell In Human Body?

What is the smallest type of cell?

MycoplasmaThe smallest cell is Mycoplasma (PPLO-Pleuro pneumonia like organims).

It is about 10 micrometer in size.

The largest cells is an egg cell of ostrich..

What is the smallest organ in human body?

pineal glandWhat’s the smallest organ in the human body? You’ll find the pineal gland near the center of the brain, in a groove between the hemispheres. It’s not an organ like those in the abdominal cavity.

What is the largest organ in the body?

Skin is the human body’s largest organ. Body organs aren’t all internal like the brain or the heart. There’s one we wear on the outside. Skin is our largest organ—adults carry some 8 pounds (3.6 kilograms) and 22 square feet (2 square meters) of it.

Which is the smallest bone in human being?

stapesThe 3 smallest bones in the human body–malleus, incus, and stapes–are located in the middle ear. At 3 x 5 mm in size, the stapes is the smallest bone in the human body.

What is the shape of human cheek cell?

The individual cells have a flat, irregular shape and a very thin membrane. Cheek cells are a popular item of study in the classroom. These easily obtained specimens are viewed under the microscope and used as a source for DNA fingerprinting studies.

What is the longest nerve cell?

The longest axons in the human body are those of the sciatic nerve, which run from the base of the spinal cord to the big toe of each foot. The diameter of axons is also variable. Most individual axons are microscopic in diameter (typically about one micrometer (µm) across).

Which is the hardest substance in our body?

Tooth enamel1. Tooth enamel is the hardest substance in the body. The shiny, white enamel that covers your teeth is even stronger than bone. This resilient surface is 96 percent mineral, the highest percentage of any tissue in your body – making it durable and damage-resistant.

How big is a sperm cell?

A human sperm cell consists of a flat, disc shaped head 5.1 µm by 3.1 µm and a tail 50 µm long. The tail flagellates, which propels the sperm cell (at about 1–3 mm/minute in humans) by whipping in an elliptical cone.

Who discovered cell?

scientist Robert HookeThe discovery of the cell would not have been possible if not for advancements to the microscope. Interested in learning more about the microscopic world, scientist Robert Hooke improved the design of the existing compound microscope in 1665.

Where is the longest neuron in the body?

The longest neuron in the human body extends from the lumbar and sacral plexuses in the lower area of the spinal cord to the toes.

Which is the longest plant cell?

Fibres of Ramie are the longest plant cells with the length upto 21.65 inches long. It is elongated by intercalary growth and intrusive tip growth.

Which is the largest cell in human body Class 9?

ovumThe largest cell is ovum in the human body. The ovum also called egg cell is the reproductive cell in the female body.

What is the biggest cell in the male human body?

Did you know: The female egg is the body’s largest cell and the male sperm is its smallest. The largest cell in the human body is the female egg and the smallest is the male sperm.

Which is largest animal cell?

ostrich eggsLargest animal cell is ostrich eggs measuring about 170*135 mm in diameter.

Which neuron is the longest?

The longest neuron in the human body has a single threadlike projection (the axon), a few micrometers in diameter, that reaches from the base of the spine to the foot, a distance of up to one meter.” For axon length of over a meter see Cavanagh (1984, PMID 6144984 p.

What is the smallest known cell?

Name the largest cell and smallest cell.The Cerebellum’s Granule Cell is the smallest cell in the human body that is between 4 micrometers to 4.5 micrometers long.The RBC ‘s size also found roughly 5 micrometers.Most scientists suggest that sperm is the smallest cell in terms of volume.More items…

Which is the smallest part of human brain?

midbrainThe midbrain is often considered the smallest region of the brain. It acts as a sort of relay station for auditory and visual information. The midbrain controls many important functions such as the visual and auditory systems as well as eye movement.

Which is the largest cell?

The sperm is the smallest cell in human biology, but also one of the most complex. The egg meanwhile is the largest cell and similarly intricate. Looking further out into the natural world, the diversity of these sex cells, or gametes, is truly remarkable. Most species have two gametes, which we term male and female.

Which is longest cell in human body?

Neurons or nerve cells can be up to 3 feet long. A typical neuron has a cell morphology called soma, hair-like structures called dendrites and an axon. Neurons are specialized in conveying knowledge throughout the body. The sensory neurons, motor neurons, and interneurons are three types of neurons.