Blood

Definition

Blood is a vital liquid tissue in the human body that transports nutrients, oxygen, and waste products. It plays a crucial role in maintaining overall health and homeostasis.

5 Must Know Facts For Your Next Test

1. Blood delivers essential nutrients such as glucose and amino acids to brain cells, supporting neurological function.
2. Iron from blood is critical for hemoglobin formation, which affects oxygen delivery to the brain.
3. Vitamin B12 and folate in blood are important for neurological health by preventing nerve damage and cognitive decline.
4. Dehydration can reduce blood volume, impairing nutrient delivery to the brain and affecting cognitive performance.
5. Antioxidants in blood help protect neural tissues from oxidative stress, which is linked to neurodegenerative diseases.

Review Questions

• How does iron in blood affect neurological wellness?
• Why are Vitamin B12 and folate important for the nervous system?
• What impact does dehydration have on cognitive performance?

Related terms

Hemoglobin: A protein in red blood cells responsible for carrying oxygen throughout the body.

Oxidative Stress:

An imbalance between free radicals and antioxidants in the body that can lead to cellular damage.

Cognitive Decline: A decrease in cognitive function typically associated with aging or neurodegenerative diseases.