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What does the Ventral and dorsal fins mean?
a dorsal fin is the one (or more) located on the back of a fish or aquatic mammal - its the fin that you see when a shark is swimming just under the surface of the water. Ventral fins are the ones toward the rear of the body and help in steering the animal through the water
Is the black widows marking on the under side or in the top?
you mean ventral or dorsal the answer is ventral. http://ohioline.osu.edu/hyg-fact/2000/2061A.html i wouldn't turn one on the little girls over just to find out. opps this is Shane not uncle rick.
Are shark dorsal fins straight while dolphin dorsal fins are curved?
Shark dorsal fins are typically straight and rigid, while dolphin dorsal fins are curved or falcate. This difference in dorsal fin shape is one of the visual cues you can use to differentiate between sharks and dolphins in the wild.
How does sperm from one earthworm enter another earthworm for cross-fertilization?
Two worms come together along their ventral sides and become temporarily joined by the secretion of a "slime tube". Sperm is discharged from the seminal vesicles of both Worms's long seminal grooves on the ventral body surfaces, and enter the seminal receptacles of the other worms.
Do bones have nerves in them?
Bones contain nerves and blood vessels. The nerves and blood vessels go though channels in the bone, so that bone cells (osteocytes) have nutrition and commands from the nervous system. Broken bones hurt a lot, which is one way you know there are nerves in them!
What plane uses sides like ventral and dorsal?
Ventral and dorsal are not sides. The words usually refer to gun turrets on WW2 bombers, dorsal being the top turret and ventral one underneath the fuselage.
What is a dorsal hollow nerve cord?
The dorsal nerve cord is one of the embryonic features unique to chordates, along with a notochord, a post-anal tail and pharyngeal slits. It is a hollow cord dorsal to the notochord. It is formed from a part of the ectoderm that rolls, forming the hollow tube, compared to other animal phyla, which have solid, ventral tubes. The dorsal nerve cord is later modified into the brain and spinal cord. Dorsal nerve cord is mainly found in phylum Vertebrata. Dorsal means the "back" side, as opposed to the belly side (ventral).
What does the Ventral and dorsal fins mean?
a dorsal fin is the one (or more) located on the back of a fish or aquatic mammal - its the fin that you see when a shark is swimming just under the surface of the water. Ventral fins are the ones toward the rear of the body and help in steering the animal through the water
What is a hollow nerve cord?
The dorsal nerve cord is one of the embryonic features unique to chordates, along with a notochord, a post-anal tail and pharyngeal slits. It is a hollow cord dorsal to the notochord. It is formed from a part of the ectoderm that rolls, forming the hollow tube, compared to other animal phyla, which have solid, ventral tubes. The dorsal nerve cord is later modified into the brain and spinal cord. Dorsal nerve cord is mainly found in phylum Vertebrata. Dorsal means the "back" side, as opposed to the belly side (ventral).
Why ganglia absent in ventral roots?
the ganglia sends information and the spinal nerves are dorsal which receives information. you would not have the one the sends information in the nerve that receives information you would be wasting resources
Which part of leaf is dorsal?
The upper side of a leaf is referred to as the dorsal side. It is also known as the adaxial surface and is typically darker in color compared to the lower side, which is called the ventral side or abaxial surface.
What blood vessel carries blood away from the heart of a earthworm?
There are two. The main one which is viewable through the skin is the dorsal blood vessel. The smaller one found under the intestine is the ventral blood vessel.
What are the types of fins of the great white shark?
Top one, bottom-front two, bottom-back two, tail one
The two principal body cavities are?
The two principal body cavities are the dorsal cavity, which includes the cranial and vertebral cavities, and the ventral cavity, which includes the thoracic and abdominopelvic cavities. These cavities protect and house internal organs and structures within the body.
What is the meaning of dorsal?
Pertaining to, or situated near, the back, or dorsum, of an animal or of one of its parts; notal; tergal; neural; as, the dorsal fin of a fish; the dorsal artery of the tongue; -- opposed to ventral., Pertaining to the surface naturally inferior, as of a leaf., Pertaining to the surface naturally superior, as of a creeping hepatic moss., A hanging, usually of rich stuff, at the back of a throne, or of an altar, or in any similar position.
What type of neuron is found in the dorsal root ganglion?
Sensory. Large diameter sensory neurons populate the medial division of the DRG and convey information regarding proprioception, localized touch, and vibration. In the lateral part of the DRG, small diameter sensory neurons conveying information about pain and temperature.
Why does it hurt when you pull out a strand of hair from your head?
When you pull out one of your hairs from the root, it hurts terribly because there are nerves in each hair root, which allow you to feel pain.
