What is a Sarcoplasmic Reticulum?
Sarcoplasmic … what?
I know it’s a long word, but it doesn’t have to be scary. In this answer the question “What is a Sarcoplasmic Reticulum?” but in layman’s terms. Explaining just the things you need to know for your Level 3 Anatomy and Physiology Exam
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What is a Sarcoplasmic Reticulum? watch now
Learning Point 1: Where is it?
Let’s have a quick recap of the sliding filament theory and structure of a muscle. The myofilaments, called actin and myosin, make up the sarcomere. A long row of sarcomeres makes up a muscle fibre or myofibril.
The sarcoplasmic Reticulum surrounds each muscle fibre like a net. You can see it in this image as a blue river around the muscle fibre
Learning Point 2: What is the Sarcoplasmic Reticulum?
Essentially the sarcoplasmic reticulum stores and releases calcium for muscle contractions.
If the words still seem to be a little daunting and confusing then breaking them down can help reinforce the name and the meaning.
Sarco = Muscle
Plasmic = Liquid
Reticulum = Net like structure
TOP TIP: The main thing you need to know for your Level 3 Anatomy and Physiology Exam is that the Sarcoplasmic Reticulum is responsible for the storage and the releasing of calcium; which is important for muscle contractions.
Now you know everything you need to know about the sarcoplasmic reticulum, let’s test your knowledge, with this Level 3 Anatomy and physiology Mock Question
What Mineral is stored in the Sarcoplasmic Reticulum?
Pop a comment with your answer below, and then watch the video for the answer.
If you want more mock questions for your Level 3 Anatomy and Physiology exam, then click the link to download 101 mock questions, to help you prepare.
Please leave a comment below telling us which learning point was most helpful. I’m looking forward to reading and replying to your comments below.
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