Vascular in Biological Definition

Plant

... - hornworts Bryophyta - mosses vascular plants (tracheophytes) seedless vascular plants Lycopodiophyta - clubmosses ... plants, called embryophytes . They include the vascular plants , plants with full systems of leaves , ...

Plant

... - hornworts Bryophyta - mosses vascular plants (tracheophytes) seedless vascular plants Lycopodiophyta - clubmosses ... plants, called embryophytes . They include the vascular plants , plants with full systems of leaves , ...

Diabetes mellitus

... caused by both large and small vessel disease stroke peripheral vascular disease which contributes to foot ulcers and the risk of amputation ... often as a result of gangrene, and almost always as a result of peripheral vascular disease. Retinal damage (from microangiopathy) makes it the most common ...

Leaf

... chlorenchyma called the mesophyll An arrangement of veins (the vascular tissue). Epidermis The epidermis is the outer multi-layered ... by curtailing chlorophyll production. Veins The veins are the vascular tissue of the leaf and are located in the spongy layer of the mesophyll. ...

Magnetic resonance imaging

... Increased neural activity causes an increased demand for oxygen, and the vascular system actually overcompensates for this, increasing the amount of ... hemoglobin. Because deoxygenated hemoglobin reduces MR signal, the vascular response leads to a signal increase that is related to the neural ....

Phloem

... In vascular plants , phloem is the tissue that carries organic nutrients, ... down by the apical meristem . Secondary phloem is laid down by the vascular cambium to the inside of the established layer(s) of phloem. ...

Xylem

... Tracheids and vessel elements In vascular plants , the xylem is the tissue that carries water up the root and ... left behind by the apical meristem . Secondary xylem is laid down by vascular cambium on the outside of the xylem column. Contents The xylem sap ...

Biological tissue

... tissue - cells forming the brain , spinal cord and peripheral nervous system Examples of tissue in other multicellular organisms are vascular tissue in plants , such as xylem and phloem . Plant tissues are categorized into the parenchyma , the collenchyma , and the sclerenchyma ...

Endodermis

... Endodermis is the bottom layer of skin . In plants, it is a thin layer of parenchyma found in roots , just outside the vascular cylinder. It regulates the flow of water. Endodermis is tightly packed together and contains Casparian strips on their radial walls which are made ...

Fungus

... . Other parasitic fungi infect plants , causing diseases such as butt rot and making trees more vulnerable to toppling. The vast majority of vascular plants are associated with mutualistic fungi, called mycorrhizae , which assist their roots in absorption of nutrients and water . ...

Insulin

... complications include cerebrovascular accidents (CVA or stroke), heart attack, blindness (from proliferative diabetic retinopathy ), toehr vascular damage, nerve damage from diabetic neuropathy , or kidney failure from diabetic nephropathy . These studies have demonstrated beyond doubt that, ...

Oncogene

... that become constitutive (permanently) active like the epidermal growth factor receptor (EGFR), platelet-derived growth factor receptor (PDGFR), vascular endothelial growth factor receptor (VEGFR), etc. Cytoplasmic tyrosine kinases like the Src-family, Syk-ZAP-70 family and BTK family of tyrosine ...

Thermoregulation

... the skin, which regulates heat loss by its vasomotor mechanism, and also by the nervous mechanism of perspiration. Dilatation of the cutaneous vascular areas leads to a larger flow of blood through the skin, and so tends to cool the body, and vice versa. Also the special nerves of perspiration can ...