Circulatory System | B.Sc. Zoology 5th Semester | Paper-2nd | Unit-7 | NEP-2020

Heart: The heart is a muscular organ that pumps blood throughout the body. In humans and other vertebrates, the heart is divided into four chambers: two atria (upper chambers) and two ventricles (lower chambers). The right side of the heart pumps deoxygenated blood to the lungs (pulmonary circulation), while the left side pumps oxygenated blood to the rest of the body (systemic circulation). Blood Vessels: Blood vessels are the network of tubes that carry blood throughout the body. There are three main types of blood vessels: Arteries: Carry oxygenated blood away from the heart (except the pulmonary artery, which carries deoxygenated blood to the lungs). Veins: Carry deoxygenated blood back to the heart (except the pulmonary veins, which carry oxygenated blood from the lungs). Capillaries: Tiny, thin-walled vessels that allow for the exchange of gases, nutrients, and waste products between blood and tissues. The human circulatory system is a closed, double circulatory system, consisting of: Pulmonary Circulation: Blood flows from the right side of the heart to the lungs, where it is oxygenated. Systemic Circulation: Oxygenated blood is carried from the left side of the heart to the body tissues, where oxygen and nutrients are exchanged with waste products. Cardiac output: The volume of blood pumped by the heart per minute. Hemoglobin: A protein in red blood cells that binds to oxygen and carries it through the bloodstream. Lymphatic system: A network of vessels that carries lymph (a fluid containing white blood cells) and plays a role in immune defense and fluid balance. #zoologydegree #zoologyfacts #zoologytimewithlarry #zoologynotes #zoologystudent #zoologyquiz #zoologynotes #zoologymcq #zoologyfacts #zoology #bscchemistry #physics #nationaleducationpolicy #science Join this channel to get access to perks:    / @letsstudyindia   ======================================== Thank-You For Watching This Video...!! Please Like, Comment & Share...!!! Don't Forgot To Subscribe The Channel....!!! Keep Loving Us...!! Keep Supporting Us...!!💛 ======================================== 👉 Contact us 🤑🤑 ➡️ Connect with us : [email protected] ➡️ Call us : 07376608660 ➡️ Subscribe to us on YouTube: @letsstudyindia ➡️ Our App : https://play.google.com/store/apps/de... ➡️ Facebook : / letstudyindia ➡️ Instagram : / letstudyindia ➡️ Telegram : https://t.me/letsstudyindia ➡️ Twitter : / letsstudyindia नमस्कार दोस्तों आप सभी का Let's Study! India के ऑनलाइन लर्निंग प्लेटफार्म पर हार्दिक स्वागत है आप हमारे इस प्लेटफार्म से जुड़कर CBSE 12th Math's & Bio के बोर्ड एग्जाम एवं उत्तर-प्रदेश के सभी विश्वविद्यालयों एवं कालेजों में लागू हुई नई शिक्षा नीति (NEP) पर आधारित स्नातक के सभी विषयों की तैयारी तथा CUET-2025 के प्रवेश परीक्षा की तैयारी आप सभी निशुल्क हमारे इस चैनल के माध्यम से कर सकते हैं। ➡️ हमारे कोर्सेज निम्न विषयों के लिए होंगे – ▫️Crash Course For 12th Math's/Bio ▫️B.Sc Math's 1st Semester ▫️B.Sc Bio 1st Semester ▫️B.Sc Math's 3rd Semester ▫️B.Sc Bio 3rd Semester ▫️CUET B.Sc Math's 2025 ▫️CUET B.Sc Biology 2025 Working Time - 24×7 #letsstudyindia #cuetindia #ncertindia #schoolindia #infoindia #bscbotany #bsczoology #bscphysics #bscmaths #bscchemistry #bscagriculture #mscbotany Disclaimer: This video is for educational and informational purposes only and all rights are reserved. If you believe that this video has used any copyrighted material in a way that constitutes copyright infringement, please contact us at contact [email protected] Regards - Team Let's Study! India