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Breast Anatomy

 
Breast Anatomy

Chapter: 2 - Breast Anatomy

Subchapter: 1 - Breast Anatomy

Anatomy & Functions
Throughout these videos, as you learn about breast cancer, we will repeatedly reference the anatomy of the breast. Understanding the different parts and functions will help you better grasp the details of breast cancer.

Adipose Tissue
The female breast is mostly made up of a collection of fat cells called adipose tissue. This tissue extends from the collarbone down to the underarm and across to the middle of the ribcage.

Lobes, Lobules, and Milk Ducts
There are also areas called lobes, lobules, and milk ducts. A healthy female breast is made up of 12–20 sections called lobes. Each of these lobes is made up of many smaller lobules, the gland that produces milk in nursing women. Both the lobes and lobules are connected by milk ducts, which act as stems or tubes to carry the milk to the nipple.

Lymph System
Also within the adipose tissue, is a network of ligaments, fibrous connective tissue, nerves, lymph vessels, lymph nodes, and blood vessels.

The lymph system, which is part of the immune system, is a network of lymph vessels and lymph nodes running throughout the entire body. Similar to how the blood circulatory system distributes elements throughout the body, the lymph system transports disease-fighting cells and fluids. Clusters of bean-shaped lymph nodes are fixed in areas throughout the lymph system; they act as filters by carrying abnormal cells away from healthy tissue.

In this chapter we looked at the anatomy of the breast, focusing on the milk ducts, lobes, lobules, lymph system, and lymph nodes.

Related Questions

  • Delores Dale Profile

    My mother has had her breast removed and her lymph nodes. What is the fatty tissue called under her arm? Will it continue to grow? Is there anything she can do about it?

    Asked by anonymous

    Family Member or Loved One
    over 2 years 2 answers
    • Betti A Profile
      anonymous
      Survivor since 2013

      I thought I felt a lump in my armpit last month. I mentioned it to my Oncology people as I just happened to have a 6-month followup appointment. She felt it and said it was just "excess fat". It's odd as it is only on the side I had my mastectomy on and not the other one, too. She didn't seem...

      more

      I thought I felt a lump in my armpit last month. I mentioned it to my Oncology people as I just happened to have a 6-month followup appointment. She felt it and said it was just "excess fat". It's odd as it is only on the side I had my mastectomy on and not the other one, too. She didn't seem concerned so guess I won't be either for now.

      Comment
    • Thumb avatar default
      anonymous
      Learning About Breast Cancer

      A plastic surgeon can during reconstruction. If she chooses no reconstruction the PS can still deal with it.

      Comment
  • Thumb avatar default

    I found a lump and it's about 5cm long I did a mammogram and a ultraasound today now I have to wait for the results. What are my chances since its that big?

    Asked by anonymous

    Learning About Breast Cancer
    over 6 years 5 answers
    • View all 5 answers
    • Monette Hubbard Profile
      anonymous
      Learning About Breast Cancer

      Might be nothing, if they did not suggest getting a biopsy. Mine was just 1cm they did two mammos, ultrasound and biopsy and it was benign. Good luck! I'll be praying for you! Let us know results!

      2 comments
    • Sharon Danielson Profile
      anonymous
      Survivor since 2007

      Usually, at the ultrasound they tell you if they want to schedule you for a biopsy. Did they mention anything like that? Breasts are lumpy. The majority of lumps and bumps are benign. You could have fibrocystic breasts, or a cyst that happen due to hormonal changes. Did they tell you how long...

      more

      Usually, at the ultrasound they tell you if they want to schedule you for a biopsy. Did they mention anything like that? Breasts are lumpy. The majority of lumps and bumps are benign. You could have fibrocystic breasts, or a cyst that happen due to hormonal changes. Did they tell you how long you have to wait? If it were me, I would call the office tomorrow and ask what was the diagnosis. Even if you have to have a biopsy, again, keep in mind, most of these turn out benign as well. Doctor's want to error on the side of caution. I will share with you, when I found a lump in my breast, and the doctor did the ultrasound and biopsy, she TOLD me right there that this was probably going to turn out to be cancer and she was right. Call the office tomorrow and see if they will tell you what they have found. Take care, Sharon

      Comment
  • Thumb avatar default

    My breast is sore with like a red rash and nipple and areola is hard and dark could it be ibc

    Asked by anonymous

    Learning About Breast Cancer
    about 5 years 5 answers
    • View all 5 answers
    • Deborah Camacho Profile
      anonymous
      Stage 2A Patient

      Check with your doctor. I never felt mine nor did I see it. However, it sounds like you need medical care.

      Comment
    • Life is Good! Profile
      anonymous
      Survivor since 2003

      It's best to go to the doctor to check out any changes in the breast. Most of the time... it is not cancer, but for peace of mind and to determine the cause, please go soon. Wishing you good results. Keep us posted, we are here for you!

      Comment
  • Joan Wehner Profile

    When you develop lymphodima in your arm, after a mastectomy, will it be permanent?

    Asked by anonymous

    Learning About Breast Cancer
    about 7 years 3 answers
    • anonymous Profile
      anonymous
      Survivor since 2007

      Hi Joan,
      I am a 4 year survivor of breast cancer. I had partial mastectomy and 17 lymph nodes removed from under my right arm followed by radiation and chemo. I did not develop noticeable lymphedema for about 2 years after my treatments. I started treatment with Lymphapress machine and an...

      more

      Hi Joan,
      I am a 4 year survivor of breast cancer. I had partial mastectomy and 17 lymph nodes removed from under my right arm followed by radiation and chemo. I did not develop noticeable lymphedema for about 2 years after my treatments. I started treatment with Lymphapress machine and an over the counter compression sleeve. This did not work very well and I eventually started manual lymphatic drainage (MLD) with a Registered Massage Therapist and I got a custom fitted sleeve. This has made a noticeable difference in the size of my arm within just a few weeks.

      I was told by several doctors and by my massage therapist that lymphedema cannot be cured, but you can keep it under control if you get the proper treatment and do the exercises. I would see if you can find a massage therapist or physiotherapist who is trained in either the Foldi or Vodder method of MLD.

      Good luck with your treatment, and I will be thinking of you.

      Comment
    • Deborah Goessling Profile
      anonymous
      Survivor since 2009

      I had all the lymph nodes removed under one arm. About a year later, I experienced lymphedema that was successfully reversed. I don't know if this applies to all cases. My lymphedema was so mild that I didn't notice it. It was detected with the help of an L-Dex machine; otherwise, i wouldn't have...

      more

      I had all the lymph nodes removed under one arm. About a year later, I experienced lymphedema that was successfully reversed. I don't know if this applies to all cases. My lymphedema was so mild that I didn't notice it. It was detected with the help of an L-Dex machine; otherwise, i wouldn't have known I had it. After it was detected, the nurse practitioner (at my breast surgeon's office) instructed me to wear a compression sleeve for the next 8 weeks. I went beyond that and added back the exercising I had grown lax about doing. I re-started my jogging and weight-lifting programs. I always wore my sleeve while doing these things, and I read about how to do them safely. (For example, with weight-lifting start SLOWLY and increase GRADUALLY. Get plenty of rest between sets when weight-lifting. You might want to do one set for your arms and then alternate with a set for your legs so that your arm has more time to recover than when you follow a standard program. There are books and articles with good tips like this. I read up on it.) Anyway, after going 2 months wearing my sleeve all day PLUS resuming the exercising (jogging & weight-lifting) I had been slacking off on, my L-Dex scores went back to normal. I was told I no longer had lymphedema and could stop wearing the sleeve other than when I exercise. (I always wear it when I exercise.) This is just one case, and my lymphedema was MILD. So i don't know if this answer will help you.

      Comment

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